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98-71-5 Usage

Description

4-Hydrazinobenzenesulfonic acid is an organic compound with the chemical formula C6H7NO3S. It is a white crystalline solid that is soluble in water and has a molecular weight of 173.19 g/mol. 4-Hydrazinobenzenesulfonic acid is known for its versatile chemical properties and is widely used in various industries.

Uses

Used in Analytical Chemistry:
4-Hydrazinobenzenesulfonic acid is used as a reagent in analytical experiments to determine trace components of mixtures. Its ability to form complexes with various metal ions makes it a valuable tool in the analysis of complex samples.
Used in Pharmaceutical Industry:
4-Hydrazinobenzenesulfonic acid is used as an intermediate in the synthesis of pharmaceuticals. Its unique chemical structure allows it to be used in the development of new drugs and medications.
Used in Dye Industry:
4-Hydrazinobenzenesulfonic acid is used in the production of dyes. Its ability to form colored complexes with metal ions makes it a useful component in the creation of various dyes.
Used in Agrochemical Industry:
4-Hydrazinobenzenesulfonic acid has active applications in organic synthesis for agrochemicals. It is used in the development of new pesticides and herbicides to improve crop yields and protect plants from pests.
Used in Photographic Industry:
4-Hydrazinobenzenesulfonic acid is used in the photographic industry for its ability to form complexes with silver ions, which is essential in the development of photographic films.
Used in Heat Stabilizers:
4-Hydrazinobenzenesulfonic acid is used in the production of heat stabilizers for plastics. Its ability to form stable complexes with metal ions helps to prevent the degradation of plastics at high temperatures.
Used in Polymerization Catalysts:
4-Hydrazinobenzenesulfonic acid is used as a catalyst in the polymerization process. Its unique chemical properties enable it to initiate and control the formation of polymers.
Used in Flame-Retardants:
4-Hydrazinobenzenesulfonic acid is used in the development of flame-retardant materials. Its ability to form stable complexes with metal ions helps to reduce the flammability of various materials.
Used in Blowing Agents for Plastics:
4-Hydrazinobenzenesulfonic acid is used as a blowing agent in the production of foamed plastics. Its ability to generate gas during the polymerization process helps to create lightweight and flexible plastic materials.
Used in Explosives:
4-Hydrazinobenzenesulfonic acid is used in the production of explosives due to its ability to form stable complexes with metal ions, which can be used to initiate explosive reactions.

Check Digit Verification of cas no

The CAS Registry Mumber 98-71-5 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 9 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 98-71:
(4*9)+(3*8)+(2*7)+(1*1)=75
75 % 10 = 5
So 98-71-5 is a valid CAS Registry Number.
InChI:InChI=1/C6H8N2O3S.H2O/c7-8-5-1-3-6(4-2-5)12(9,10)11;/h1-4,8H,7H2,(H,9,10,11);1H2

98-71-5 Well-known Company Product Price

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  • Alfa Aesar

  • (A13362)  4-Hydrazinobenzenesulfonic acid hydrate, 98%   

  • 98-71-5

  • 5g

  • 235.0CNY

  • Detail
  • Alfa Aesar

  • (A13362)  4-Hydrazinobenzenesulfonic acid hydrate, 98%   

  • 98-71-5

  • 25g

  • 567.0CNY

  • Detail
  • Alfa Aesar

  • (A13362)  4-Hydrazinobenzenesulfonic acid hydrate, 98%   

  • 98-71-5

  • 100g

  • 1098.0CNY

  • Detail

98-71-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-Hydrazinobenzenesulfonic acid

1.2 Other means of identification

Product number -
Other names p-hydrazinophenylsulfonicacid

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:98-71-5 SDS

98-71-5Synthetic route

4-sulfobenzenediazonium
2154-66-7

4-sulfobenzenediazonium

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

Conditions
ConditionsYield
Stage #1: 4-sulfobenzenediazonium With sodium sulphite-heptahydrate In water at 0 - 5℃; for 2h;
Stage #2: With hydrogenchloride In water for 0.5h;
96%
With sulfuric acid; sodium sulfite at 0 - 5℃;95%
4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

Conditions
ConditionsYield
Stage #1: 4-aminobenzene sulfonic acid With sulfuric acid; sodium carbonate; sodium nitrite In water at 5℃;
Stage #2: With hydrogenchloride; sodium sulfite In water at 5℃; Reflux;
85%
Stage #1: 4-aminobenzene sulfonic acid With sulfuric acid; sodium carbonate; sodium nitrite In water at 12℃; Cooling with ice;
Stage #2: With sodium sulfite In water at 5℃; Heating;
Stage #3: With hydrogenchloride; zinc In water at 20℃; for 12h;
74%
Diazotization.Behandeln mit Na2SO3 und Spalten mit Salzsaeure;
4-Sulfo-benzenediazonium; hydrogen sulfate

4-Sulfo-benzenediazonium; hydrogen sulfate

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

Conditions
ConditionsYield
Stage #1: 4-Sulfo-benzenediazonium; hydrogen sulfate With sodium sulfite In water Heating / reflux;
Stage #2: With hydrogenchloride In water
85%
4-diazobenzenesulfonic acid
305-80-6

4-diazobenzenesulfonic acid

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

Conditions
ConditionsYield
With potassium sulfite Kochen mit konz. Salzsaeure;
With sodium dithionite Hydrolyse des Reaktionsprodukts mit kochender Salzsaeure;
4-nitroamino-benzenesulfonic acid
61734-81-4

4-nitroamino-benzenesulfonic acid

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

Conditions
ConditionsYield
With sodium amalgam
ethanol
64-17-5

ethanol

4-[N'-(α-hydroxy-3,4-methylenedioxy-benzyl)-hydrazino]-benzenesulfonic acid

4-[N'-(α-hydroxy-3,4-methylenedioxy-benzyl)-hydrazino]-benzenesulfonic acid

A

piperonal
120-57-0

piperonal

B

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

Conditions
ConditionsYield
allmaehliche Zersetzung;
4-[N'-(α-hydroxy-3,4-methylenedioxy-benzyl)-hydrazino]-benzenesulfonic acid

4-[N'-(α-hydroxy-3,4-methylenedioxy-benzyl)-hydrazino]-benzenesulfonic acid

acetic acid
64-19-7

acetic acid

A

piperonal
120-57-0

piperonal

B

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

Conditions
ConditionsYield
schnelle Zersetzung;
phenylhydrazine
100-63-0

phenylhydrazine

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

Conditions
ConditionsYield
With sulfuric acid at 80 - 100℃;
4-[N'-(α-hydroxy-3,4-methylenedioxy-benzyl)-hydrazino]-benzenesulfonic acid

4-[N'-(α-hydroxy-3,4-methylenedioxy-benzyl)-hydrazino]-benzenesulfonic acid

water
7732-18-5

water

A

piperonal
120-57-0

piperonal

B

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

Conditions
ConditionsYield
allmaehliche Zersetzung;
4-[N'-(α-hydroxy-3,4-methylenedioxy-benzyl)-hydrazino]-benzenesulfonic acid

4-[N'-(α-hydroxy-3,4-methylenedioxy-benzyl)-hydrazino]-benzenesulfonic acid

hot water

hot water

A

piperonal
120-57-0

piperonal

B

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

Conditions
ConditionsYield
schnelle Zersetzung;
4-[N'-(α-hydroxy-3,4-methylenedioxy-benzyl)-hydrazino]-benzenesulfonic acid

4-[N'-(α-hydroxy-3,4-methylenedioxy-benzyl)-hydrazino]-benzenesulfonic acid

mineral acid

mineral acid

A

piperonal
120-57-0

piperonal

B

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

Conditions
ConditionsYield
schnelle Zersetzung;
sulfuric acid
7664-93-9

sulfuric acid

phenylhydrazine
100-63-0

phenylhydrazine

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

Conditions
ConditionsYield
unter Kuehlung und anschl. Erwaermen auf 80-100grad;
disodium-salt of/the/ 4-cis-azo>-benzene-sulfonic acid-(1)

disodium-salt of/the/ 4-cis-azo>-benzene-sulfonic acid-(1)

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

Conditions
ConditionsYield
With sodium hydroxide Reduktion an einer Quecksilber-Kathode;
disodium-salt of/the/ 4-trans-azo>-benzene-sulfonic acid-(1)

disodium-salt of/the/ 4-trans-azo>-benzene-sulfonic acid-(1)

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

Conditions
ConditionsYield
With sodium hydroxide Reduktion an einer Quecksilber-Kathode;
4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

hydroxylamine-O-sulfonic acid

hydroxylamine-O-sulfonic acid

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

Conditions
ConditionsYield
With sodium hydroxide
p-diazobenzenesulfonate sodium

p-diazobenzenesulfonate sodium

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

Conditions
ConditionsYield
With sodium amalgam
potassium salt of/the/ phenylhydrazine-4.α.β-trisulfonic acid

potassium salt of/the/ phenylhydrazine-4.α.β-trisulfonic acid

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

Conditions
ConditionsYield
With hydrogenchloride
potassium salt of/the/ phenylhydrazine-4.β-disulfonic acid

potassium salt of/the/ phenylhydrazine-4.β-disulfonic acid

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

Conditions
ConditionsYield
With hydrogenchloride
hydrogenchloride
7647-01-0

hydrogenchloride

4-diazobenzenesulfonic acid
305-80-6

4-diazobenzenesulfonic acid

diluted alkali

diluted alkali

potassium sulfite

potassium sulfite

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

4-nitroamino-benzenesulfonic acid
61734-81-4

4-nitroamino-benzenesulfonic acid

sodium amalgam

sodium amalgam

alkali

alkali

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

(E)-4-hydroxyazo-benzenesulfonic acid ; disodium-salt
118834-04-1

(E)-4-hydroxyazo-benzenesulfonic acid ; disodium-salt

sodium amalgam

sodium amalgam

alkali

alkali

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

4-(N'-sulfo-hydrazino)-benzenesulfonic acid ; dipotassium-salt

4-(N'-sulfo-hydrazino)-benzenesulfonic acid ; dipotassium-salt

strong hydrochloric acid

strong hydrochloric acid

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

4-(N,N'-disulfo-hydrazino)-benzenesulfonic acid ; tripotassium-salt trihydrate

4-(N,N'-disulfo-hydrazino)-benzenesulfonic acid ; tripotassium-salt trihydrate

hydrochloric acid

hydrochloric acid

A

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

B

sulfuric acid

sulfuric acid

HSO3(2-)

HSO3(2-)

4-sulfobenzenediazonium
2154-66-7

4-sulfobenzenediazonium

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

Conditions
ConditionsYield
In not given
In not given
3-methyl-butan-2-one
563-80-4

3-methyl-butan-2-one

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

2,3,3-trimethylindole-5-sulfonic acid
132557-72-3

2,3,3-trimethylindole-5-sulfonic acid

Conditions
ConditionsYield
With acetic acid for 3h; Concentration; Fischer Indole Synthesis; Reflux;97%
With acetic acid for 14h; Reflux;94%
With acetic acid at 120℃; Fischer Indole Synthesis;94%
benzaldehyde
100-52-7

benzaldehyde

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

hydrazone 4-[(2Z)-2-benzylidenehydrazinyl]benzenesulfonic acid

hydrazone 4-[(2Z)-2-benzylidenehydrazinyl]benzenesulfonic acid

Conditions
ConditionsYield
Stage #1: 4-hydrazino-benzenesulfonic acid With sodium hydroxide In water at 45℃; for 0.5h; pH=10;
Stage #2: benzaldehyde In water at 55 - 60℃; for 3.5h;
97%
With 1-deoxy-1-(methylamino)-D-glucitol In ethanol; water at 20℃; for 0.5h;96%
Stage #1: 4-hydrazino-benzenesulfonic acid With sodium hydroxide In water at 45℃; for 0.5h; pH=Ca. 10;
Stage #2: benzaldehyde at 55 - 60℃; for 3h;
indole-2,3-dione
91-56-5

indole-2,3-dione

2-aminoacetophenone
551-93-9

2-aminoacetophenone

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

C22H15N3O4S

C22H15N3O4S

Conditions
ConditionsYield
In ethanol for 0.3h; Inert atmosphere; Reflux;94%
5-fluoro-1H-indole-2,3-dione
443-69-6

5-fluoro-1H-indole-2,3-dione

2-aminoacetophenone
551-93-9

2-aminoacetophenone

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

C22H14FN3O4S

C22H14FN3O4S

Conditions
ConditionsYield
In ethanol for 0.25h; Inert atmosphere; Reflux;94%
5-Bromo-1H-indole-2,3-dione
87-48-9

5-Bromo-1H-indole-2,3-dione

2-aminoacetophenone
551-93-9

2-aminoacetophenone

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

C22H14BrN3O4S

C22H14BrN3O4S

Conditions
ConditionsYield
In ethanol for 0.266667h; Inert atmosphere; Reflux;93%
2-aminoacetophenone
551-93-9

2-aminoacetophenone

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

acenaphthene quinone
82-86-0

acenaphthene quinone

C26H16N2O4S

C26H16N2O4S

Conditions
ConditionsYield
In ethanol for 0.366667h; Inert atmosphere; Reflux;92%
3-methyl-butan-2-one
563-80-4

3-methyl-butan-2-one

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

potassium 2,3,3-trimethylindole-5-sulfonate

potassium 2,3,3-trimethylindole-5-sulfonate

Conditions
ConditionsYield
Stage #1: 3-methyl-butan-2-one; 4-hydrazino-benzenesulfonic acid With acetic acid for 4h; Reflux;
Stage #2: With potassium hydroxide In methanol; propan-1-ol at 20℃; for 24h;
90%
Stage #1: 3-methyl-butan-2-one; 4-hydrazino-benzenesulfonic acid With acetic acid for 3h; Reflux;
Stage #2: With potassium hydroxide In methanol; isopropyl alcohol Cooling with ice; Sonication;
80%
Stage #1: 3-methyl-butan-2-one; 4-hydrazino-benzenesulfonic acid In acetic acid at 105℃; for 2.33333h; Heating / reflux;
Stage #2: With potassium acetate In methanol; acetic acid
77%
1-Methyl-4-piperidone
1445-73-4

1-Methyl-4-piperidone

2-aminoacetophenone
551-93-9

2-aminoacetophenone

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

C20H21N3O3S

C20H21N3O3S

Conditions
ConditionsYield
In ethanol for 0.466667h; Inert atmosphere; Reflux;90%
2-aminoacetophenone
551-93-9

2-aminoacetophenone

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

3,4-dihydronaphthalene-1(2H)-one
529-34-0

3,4-dihydronaphthalene-1(2H)-one

C24H20N2O3S

C24H20N2O3S

Conditions
ConditionsYield
In ethanol for 0.4h; Inert atmosphere; Reflux;90%
5-nitroisatin
611-09-6

5-nitroisatin

2-aminoacetophenone
551-93-9

2-aminoacetophenone

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

C22H14N4O6S

C22H14N4O6S

Conditions
ConditionsYield
In ethanol for 0.416667h; Inert atmosphere; Reflux;89%
5-methyl-indole-2,3-dione
608-05-9

5-methyl-indole-2,3-dione

2-aminoacetophenone
551-93-9

2-aminoacetophenone

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

C23H17N3O4S

C23H17N3O4S

Conditions
ConditionsYield
In ethanol for 0.4h; Inert atmosphere; Reflux;88%
4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

3-iminobutyronitrile
1118-60-1

3-iminobutyronitrile

5-amino-3-methyl-1-(4-sulfophenyl)pyrazole
69075-48-5

5-amino-3-methyl-1-(4-sulfophenyl)pyrazole

Conditions
ConditionsYield
Stage #1: 4-hydrazino-benzenesulfonic acid; 3-iminobutyronitrile for 1h; Condensation; Heating;
Stage #2: With hydrogenchloride for 2h; Cyclization; Heating;
85.6%
2-furancarbonyl chloride
527-69-5

2-furancarbonyl chloride

cyclohexanone
108-94-1

cyclohexanone

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

9-(furan-2-carbonyl)-6,7,8,9-tetrahydro-5H-carbazole-3-sulfonic acid

9-(furan-2-carbonyl)-6,7,8,9-tetrahydro-5H-carbazole-3-sulfonic acid

Conditions
ConditionsYield
Stage #1: 4-hydrazino-benzenesulfonic acid With polystyrene aldehyde resin; triethylamine In 1,2-dichloro-ethane at 45℃;
Stage #2: 2-furancarbonyl chloride With pyridine at 80℃;
Stage #3: cyclohexanone With trifluoroacetic acid In 1,2-dichloro-ethane at 70℃;
85%
4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

2-(2-hydroxyphenyl)-4H-benzo[e][1,3]oxazin-4-one
1218-69-5

2-(2-hydroxyphenyl)-4H-benzo[e][1,3]oxazin-4-one

4-[3,5-bis(2-hydroxyphenyl)-1H-1,2,4-triazol-1-yl]benzenesulfonic acid

4-[3,5-bis(2-hydroxyphenyl)-1H-1,2,4-triazol-1-yl]benzenesulfonic acid

Conditions
ConditionsYield
With triethylamine In ethanol for 20h; Heating;85%
5-methyl-6-oxoheptane-1-sulphonic acid
688339-30-2

5-methyl-6-oxoheptane-1-sulphonic acid

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

2,3-dimethyl-3-(4-sulphobutyl)-3H-indole-5-sulphonicacid
688339-34-6

2,3-dimethyl-3-(4-sulphobutyl)-3H-indole-5-sulphonicacid

Conditions
ConditionsYield
With acetic acid for 6h; Reflux;85%
With acetic acid for 6h; Heating / reflux;
With acetic acid for 6h; Heating / reflux;
4,4,4-trifluoro-1-(4-methylphenyl)butane-1,3-dione
720-94-5

4,4,4-trifluoro-1-(4-methylphenyl)butane-1,3-dione

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

4-(5-(p-tolyl)-3-(trifluoromethyl)-1H-pyrazol-1-yl)benzenesulfinic acid

4-(5-(p-tolyl)-3-(trifluoromethyl)-1H-pyrazol-1-yl)benzenesulfinic acid

Conditions
ConditionsYield
With hydrogenchloride In ethanol Reflux;85%
6-methyl-7-oxooctanoic acid
99183-34-3

6-methyl-7-oxooctanoic acid

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

potassium 3-(4-carboxybutyl)-2,3-dimethylindolenine-5-sulfonate
1072069-89-6

potassium 3-(4-carboxybutyl)-2,3-dimethylindolenine-5-sulfonate

Conditions
ConditionsYield
Stage #1: 6-methyl-7-oxooctanoic acid; 4-hydrazino-benzenesulfonic acid With acetic acid for 8h; Reflux;
Stage #2: With potassium hydroxide In methanol; diethyl ether; isopropyl alcohol
83%
Stage #1: 6-methyl-7-oxooctanoic acid; 4-hydrazino-benzenesulfonic acid In acetic acid for 8h; Reflux;
Stage #2: With potassium hydroxide In methanol; diethyl ether; isopropyl alcohol
83%
4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

2-hydroxynaphthalene-1-carbaldehyde
708-06-5

2-hydroxynaphthalene-1-carbaldehyde

C17H14N2O4S

C17H14N2O4S

Conditions
ConditionsYield
With toluene-4-sulfonic acid In ethanol at 80℃;83%
4,4,4-trifluoro-1-(4-methylphenyl)butane-1,3-dione
720-94-5

4,4,4-trifluoro-1-(4-methylphenyl)butane-1,3-dione

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

4-(5-p-methylphenyl-3-trifluoromethyl-pyrazol-1-yl)-benzenesulfonic acid
921617-76-7

4-(5-p-methylphenyl-3-trifluoromethyl-pyrazol-1-yl)-benzenesulfonic acid

Conditions
ConditionsYield
With hydrogenchloride In ethanol; water at 20℃; for 8h; Heating / reflux;82%
With hydrogenchloride In ethanol for 8h; Heating;82%
C35H44N2O5S3

C35H44N2O5S3

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

C41H49N4O7S4(1-)*H4N(1+)

C41H49N4O7S4(1-)*H4N(1+)

Conditions
ConditionsYield
Stage #1: C35H44N2O5S3 With hydrogenchloride In methanol at 90℃;
Stage #2: 4-hydrazino-benzenesulfonic acid In ethanol; water at 90℃; for 16h; Inert atmosphere;
82%
3-methyl-butan-2-one
563-80-4

3-methyl-butan-2-one

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

ammonium 2,3,3-trimethyl-3H-indole-5-sulfonate

ammonium 2,3,3-trimethyl-3H-indole-5-sulfonate

Conditions
ConditionsYield
With acetic acid at 118℃; for 18h; Inert atmosphere;80%
With acetic acid at 118℃; for 18h; Inert atmosphere;80%
3-Bromophthalide
6940-49-4

3-Bromophthalide

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

1'-(1-oxophthalazin-2(1H)-yl)benzenesulfonic acid

1'-(1-oxophthalazin-2(1H)-yl)benzenesulfonic acid

Conditions
ConditionsYield
Stage #1: 3-Bromophthalide With hydrogenchloride In water for 2h; Reflux;
Stage #2: 4-hydrazino-benzenesulfonic acid In water at 20℃; for 2h;
76%
rac-methyl 6-methyl-7-oxooctanoate
5601-58-1

rac-methyl 6-methyl-7-oxooctanoate

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

sodium 3-(5-methoxy-5-oxopentyl)-2,3-dimethyl-3H-indole-5-sulfonate

sodium 3-(5-methoxy-5-oxopentyl)-2,3-dimethyl-3H-indole-5-sulfonate

Conditions
ConditionsYield
Stage #1: rac-methyl 6-methyl-7-oxooctanoate; 4-hydrazino-benzenesulfonic acid With acetic acid for 4h; Fischer Indole Synthesis; Reflux;
Stage #2: With sodium carbonate In methanol at 20℃; for 15h;
76%
benzaldehyde
100-52-7

benzaldehyde

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

benzaldehyde (4-sulfophenyl)hydrazone

benzaldehyde (4-sulfophenyl)hydrazone

Conditions
ConditionsYield
With acetic acid In water at 60℃; for 3h; pH=3;72%
3-methyl-butan-2-one
563-80-4

3-methyl-butan-2-one

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

2,3,3,-trimethylindoleninium-5-sulfonate potassium salt

2,3,3,-trimethylindoleninium-5-sulfonate potassium salt

Conditions
ConditionsYield
Stage #1: 3-methyl-butan-2-one; 4-hydrazino-benzenesulfonic acid With acetic acid at 115℃; for 4h; Inert atmosphere;
Stage #2: With potassium hydroxide In methanol; isopropyl alcohol
69.5%
4-methyl-5-oxohexane sulfonic acid
952292-10-3

4-methyl-5-oxohexane sulfonic acid

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

2,3-dimethyl-3-(3-sulfopropyl)indoleninium-5-sulfonate potassium salt

2,3-dimethyl-3-(3-sulfopropyl)indoleninium-5-sulfonate potassium salt

Conditions
ConditionsYield
Stage #1: 4-methyl-5-oxohexane sulfonic acid; 4-hydrazino-benzenesulfonic acid With acetic acid at 115℃; for 30h; Inert atmosphere; Reflux;
Stage #2: With potassium hydroxide In methanol; isopropyl alcohol at 50℃; for 18h;
68.4%
2-Thiophenecarbonyl chloride
5271-67-0

2-Thiophenecarbonyl chloride

cyclohexanone
108-94-1

cyclohexanone

4-hydrazino-benzenesulfonic acid
98-71-5

4-hydrazino-benzenesulfonic acid

9-(thiophene-2-carbonyl)-6,7,8,9-tetrahydro-5H-carbazole-3-sulfonic acid

9-(thiophene-2-carbonyl)-6,7,8,9-tetrahydro-5H-carbazole-3-sulfonic acid

Conditions
ConditionsYield
Stage #1: 4-hydrazino-benzenesulfonic acid With polystyrene aldehyde resin; triethylamine In 1,2-dichloro-ethane at 45℃;
Stage #2: 2-Thiophenecarbonyl chloride With pyridine at 80℃;
Stage #3: cyclohexanone With trifluoroacetic acid In 1,2-dichloro-ethane at 70℃;
66%

98-71-5Relevant articles and documents

Determination of carbohydrates as their p-sulfophenylhydrazones by capillary zone electrophoresis

Wang, Xiaoyan,Chen, Yi

, p. 191 - 196 (2001)

p-Hydrazinobenzenesulfonic acid was explored as an ultraviolet labeling reagent for capillary electrophoresis of mono-, di- and trisaccharides. The labeling reaction that produces p-sulfophenylhydrazines took less than 8 min, and introduced both chromphore and charged groups into the carbohydrate molecules. The derivatives of nine mono- and disaccharides were completely separated in 9 min using a 100 mM borate buffer at pH 10.24. On-column UV detection at 200 nm allowed the detection of glucose with a mass detection limit of 17.6 fmol or a concentration limit of 3.6 μM. Reproducible quantification of carbohydrates was achieved in the concentration range of 0.1-9.1 mM in reaction solution. The method was applied successfully to determine the monosaccharide composition of laminaran.

Synthesis, DFT, computational exploration of chemical reactivity, molecular docking studies of novel formazan metal complexes and their biological applications

Khan, Shakeel Ahmad,Rizwan, Komal,Shahid, Sammia,Noamaan, Mahmoud A.,Rasheed, Tahir,Amjad, Hira

, (2020/01/24)

The computational exploration of chemical reactivity and molecular docking of the synthesized formazan compounds (S1-S6) were studied. Further, their antimicrobial activity against bacterial strains (S. epidermidis, B. cereus, K. pneumoniae and P. aeruginosa) and against fungal strains (T. mentagrophytes, C. albicans, A. niger, S. cerevisiae and C. glabrata) using agar diffusion method and antioxidant activity following DPPH inhibition assays were evaluated. Anticancer activity was executed in vitro model of human breast carcinoma (MCF-7) cell line. The superior and enhanced antibacterial and antimycotic activities were exhibited by formazan compound (S4) by presenting maximum ZOIs and MICs values. While enhanced antioxidant in terms of percentage inhibition of DPPH and cytotoxic effect on human breast carcinoma-cells demonstrated by formazan compound (S1) which was further validated by the results of molecular docking studies of (S1) with the human estrogen receptor protein. In order to compute quantum chemical reactivity descriptors from conceptual density functional theory (CDFT) point of view of this system, including chemical potential (μ), chemical hardness (η), electrophilicity (ω), condensed Fukui function and dual descriptors are calculated at the same level of calculation. The most active sites of these molecules are determined and correlated with experimental data. The present investigation displays that formazans compounds could be potential drug candidate that constrains the growth of microbial strains, possess ability to cause cytotoxic effect on carcinoma cells and act as effective scavenger for free radical species.

Luminescent compounds

-

Page/Page column 15, (2013/11/04)

Dyes and photoluminescent compounds based on polymethine dyes that contain at least one alkyl-phosphonate or substituted alkyl-phosphonate group, including the synthetic precursors, methods of synthesis, and applications thereof. Certain embodiments include heterocyclic ring systems and polymethine linkage are selected such that the resulting polymethine dye is a cyanine dye, a merocyanine dye, or a styryl dye.

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