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  • China Biggest factory Manufacturer Supply High Quality 1-Aminonaphthalene-6-sulfonic acid CAS 119-79-9

    Cas No: 119-79-9

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  • 119-79-9 Structure
  • Basic information

    1. Product Name: 1-Aminonaphthalene-6-sulfonic acid
    2. Synonyms: 1-Naphthalene -6-sulfonic acid;1-naphthylamine-6-sulfonic;2-Naphthalenesulfonic acid, 5-amino-;2-Naphthalenesulfonicacid,5-amino-;5-amino-2-naphthalenesulfonicaci;5-Naphthylamine-2-sulfonic acid;5-naphthylamine-2-sulfonicacid;cleve’sbeta-acid
    3. CAS NO:119-79-9
    4. Molecular Formula: C10H9NO3S
    5. Molecular Weight: 223.25
    6. EINECS: 257-269-4
    7. Product Categories: Intermediates of Dyes and Pigments;Organics;Organic Building Blocks;Sulfonic/Sulfinic Acids;Sulfur Compounds;Amines;Aromatics;Fluorescent Labels & Indicators
    8. Mol File: 119-79-9.mol
    9. Article Data: 6
  • Chemical Properties

    1. Melting Point: >300°C
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: grey-red power
    5. Density: 1.3588 (rough estimate)
    6. Vapor Pressure: 0Pa at 25℃
    7. Refractive Index: 1.6500 (estimate)
    8. Storage Temp.: Refrigerator
    9. Solubility: soluble100mg/mL, clear, brown (1N NH4OH)
    10. PKA: pK1: 3.80 (25°C)
    11. Water Solubility: 1g/L(16 oC)
    12. Merck: 14,2350
    13. BRN: 1819887
    14. CAS DataBase Reference: 1-Aminonaphthalene-6-sulfonic acid(CAS DataBase Reference)
    15. NIST Chemistry Reference: 1-Aminonaphthalene-6-sulfonic acid(119-79-9)
    16. EPA Substance Registry System: 1-Aminonaphthalene-6-sulfonic acid(119-79-9)
  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: 36/37/38
    3. Safety Statements: 26-36/37/39-24/25
    4. RIDADR: 1759
    5. WGK Germany: 1
    6. RTECS: QK1285000
    7. TSCA: Yes
    8. HazardClass: 8
    9. PackingGroup: III
    10. Hazardous Substances Data: 119-79-9(Hazardous Substances Data)

119-79-9 Usage

Chemical Properties

Purple Solid

Uses

Different sources of media describe the Uses of 119-79-9 differently. You can refer to the following data:
1. Intermediate of dyestuff
2. Fluorescent reagent.
3. 5-Amino-2-naphthalenesulfonic acid (1,6-Cleve′s acid) was used in the synthesis of nitrate reductase and detection of nitrate reduction by anaerobic bacteria.

General Description

The crystal structure of 5-amino-2-naphthalenesulfonic acid (1,6-Cleve′s acid) depicted the presence of a sulfonate-aminium group zwitterion.

Check Digit Verification of cas no

The CAS Registry Mumber 119-79-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,1 and 9 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 119-79:
(5*1)+(4*1)+(3*9)+(2*7)+(1*9)=59
59 % 10 = 9
So 119-79-9 is a valid CAS Registry Number.
InChI:InChI=1/C10H9NO3S/c11-10-3-1-2-7-6-8(15(12,13)14)4-5-9(7)10/h1-6H,11H2,(H,12,13,14)

119-79-9 Well-known Company Product Price

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  • Alfa Aesar

  • (L03099)  5-Aminonaphthalene-2-sulfonic acid, 97%   

  • 119-79-9

  • 5g

  • 216.0CNY

  • Detail
  • Alfa Aesar

  • (L03099)  5-Aminonaphthalene-2-sulfonic acid, 97%   

  • 119-79-9

  • 25g

  • 428.0CNY

  • Detail
  • Aldrich

  • (285072)  5-Amino-2-naphthalenesulfonicacid  ≥95%

  • 119-79-9

  • 285072-5G

  • 311.22CNY

  • Detail
  • Aldrich

  • (285072)  5-Amino-2-naphthalenesulfonicacid  ≥95%

  • 119-79-9

  • 285072-100G

  • 1,090.44CNY

  • Detail

119-79-9SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 10, 2017

Revision Date: Aug 10, 2017

1.Identification

1.1 GHS Product identifier

Product name 5-aminonaphthalene-2-sulfonic acid

1.2 Other means of identification

Product number -
Other names 1-Naphthylamine-6-sulfonic Acid

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:119-79-9 SDS

119-79-9Synthetic route

naphthalene-2-sulfonate
120-18-3

naphthalene-2-sulfonate

A

5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

B

8-amino-2-naphthalenesulfonic acid
119-28-8

8-amino-2-naphthalenesulfonic acid

Conditions
ConditionsYield
With sulfuric acid; nitric acid at 25℃; anschl. bei 10grad, Reduzieren des erhaltenen Gemisches mit Eisen und sehr verd. Salzsaeure;
With sulfuric acid; nitric acid at 25℃; dann bei 10grad, Reduzieren des erhaltenen Gemisches mit Eisen und sehr verd. Salzsaeure;
Stage #1: naphthalene-2-sulfonate With sulfuric acid at 120℃; for 0.666667h;
Stage #2: With nitric acid at 33 - 35℃; for 20h; Reagent/catalyst; Overall yield = 86 percent; Overall yield = 75 g; Further stages;
1-nitro-6-naphthalenesulfonic acid
86-69-1

1-nitro-6-naphthalenesulfonic acid

5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

Conditions
ConditionsYield
With ammonium sulfide
With iron; acetic acid
1-amino-naphthalene
134-32-7

1-amino-naphthalene

5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

Conditions
ConditionsYield
With sulfuric acid at 125 - 130℃;
sulfuric acid
7664-93-9

sulfuric acid

1-amino-naphthalene
134-32-7

1-amino-naphthalene

A

5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

B

1-aminonaphthalene-5-sulfonic acid
84-89-9

1-aminonaphthalene-5-sulfonic acid

Conditions
ConditionsYield
at 125 - 130℃; bei laengerem Erhitzen;
sulfuric acid
7664-93-9

sulfuric acid

1-amino-naphthalene
134-32-7

1-amino-naphthalene

A

5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

B

1-aminonaphthalene-5-sulfonic acid
84-89-9

1-aminonaphthalene-5-sulfonic acid

C

4-aminonaphthalene-1,6-disulfonic acid
85-75-6

4-aminonaphthalene-1,6-disulfonic acid

Conditions
ConditionsYield
at 125 - 130℃; bei laengerem Erhitzen;
4-amino-1-naphthalenesufonic acid
84-86-6

4-amino-1-naphthalenesufonic acid

sulfuric acid
7664-93-9

sulfuric acid

A

5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

B

1-aminonaphthalene-5-sulfonic acid
84-89-9

1-aminonaphthalene-5-sulfonic acid

C

4-aminonaphthalene-1,6-disulfonic acid
85-75-6

4-aminonaphthalene-1,6-disulfonic acid

Conditions
ConditionsYield
at 125 - 130℃;
1-nitro-6-naphthalenesulfonic acid
86-69-1

1-nitro-6-naphthalenesulfonic acid

ammonium sulfide

ammonium sulfide

5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

m-nitrobenzoic acid chloride
121-90-4

m-nitrobenzoic acid chloride

5-(3-nitrobenzamido)naphthalene-2-sulfonic acid

5-(3-nitrobenzamido)naphthalene-2-sulfonic acid

Conditions
ConditionsYield
With sodium carbonate In water; toluene pH=5;96%
5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

poly(5-aminonaphthalene-2-sulphonic acid)

poly(5-aminonaphthalene-2-sulphonic acid)

Conditions
ConditionsYield
With sodium hydroxide; sodium periodate; aniline hydrochloride In water oxidative polymerization;95%
5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

5-(tert-butoxycarbonylamino)naphthalene-2-sulfonic acid
1415094-45-9

5-(tert-butoxycarbonylamino)naphthalene-2-sulfonic acid

Conditions
ConditionsYield
With triethylamine In methanol at 20℃; Inert atmosphere;94%
5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

benzoyl chloride
98-88-4

benzoyl chloride

5-benzamidonaphthalene-2-sulfonic acid

5-benzamidonaphthalene-2-sulfonic acid

Conditions
ConditionsYield
With sodium carbonate In water; toluene pH=5;94%
5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

acetylacetone
123-54-6

acetylacetone

4-hydroxy-3-(6'-sulfonyl-1'-azonaphthyl)-3-penten-2-one

4-hydroxy-3-(6'-sulfonyl-1'-azonaphthyl)-3-penten-2-one

Conditions
ConditionsYield
Stage #1: 5-aminonaphthalene-2-sulfonic acid With hydrogenchloride; sodium carbonate; sodium nitrite In water for 0.5h;
Stage #2: acetylacetone With sodium carbonate In water for 0.5h; pH=7; Further stages.;
93%
5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

4-amino-N,N-dimethylaniline
99-98-9

4-amino-N,N-dimethylaniline

acide 5[(2'-acide sulfonique-5'-aminonaphthalenyl)imino]-8-(N,N-dimethyl-p-aminophenyl)iminonaphthalene-2-sulfonique

acide 5[(2'-acide sulfonique-5'-aminonaphthalenyl)imino]-8-(N,N-dimethyl-p-aminophenyl)iminonaphthalene-2-sulfonique

Conditions
ConditionsYield
With ammonium peroxydisulfate; acetic acid; triethylamine In methanol; water at 0℃; for 3h; Condensation;90%
5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

4-hydroxy-1-(4-sulphophenyl)-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole
776325-74-7

4-hydroxy-1-(4-sulphophenyl)-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole

5-(6'-sulphonaphthyl)azo-1-(4'-sulphophenyl)-4-hydroxy-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole

5-(6'-sulphonaphthyl)azo-1-(4'-sulphophenyl)-4-hydroxy-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole

Conditions
ConditionsYield
Stage #1: 5-aminonaphthalene-2-sulfonic acid With hydrogenchloride; sodium hydroxide; sodium nitrite at 0 - 5℃; for 3h;
Stage #2: 4-hydroxy-1-(4-sulphophenyl)-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole With sodium carbonate for 3.5h;
86%
5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

4-hydroxy-1-(2',5'-dichloro-4'-sulphophenyl)-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole
776325-76-9

4-hydroxy-1-(2',5'-dichloro-4'-sulphophenyl)-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole

5-(6'-sulphonaphthyl)azo-1-(2',5'-dichloro-4'-sulphophenyl)-4-hydroxy-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole

5-(6'-sulphonaphthyl)azo-1-(2',5'-dichloro-4'-sulphophenyl)-4-hydroxy-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole

Conditions
ConditionsYield
Stage #1: 5-aminonaphthalene-2-sulfonic acid With hydrogenchloride; sodium hydroxide; sodium nitrite at 0 - 5℃; for 3h;
Stage #2: 4-hydroxy-1-(2',5'-dichloro-4'-sulphophenyl)-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole With sodium carbonate
86%
5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

4-hydroxy-1-(6'-sulphonaphtyl)-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole
776325-78-1

4-hydroxy-1-(6'-sulphonaphtyl)-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole

5-(6'-sulphonaphthyl)azo-1-(6'-sulphonaphthyl)-4-hydroxy-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole

5-(6'-sulphonaphthyl)azo-1-(6'-sulphonaphthyl)-4-hydroxy-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole

Conditions
ConditionsYield
Stage #1: 5-aminonaphthalene-2-sulfonic acid With hydrogenchloride; sodium hydroxide; sodium nitrite at 0 - 5℃; for 3h;
Stage #2: 4-hydroxy-1-(6'-sulphonaphtyl)-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole With sodium carbonate
86%
5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

4-hydroxy-1-(8'-sulphonaphtyl)-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole
776325-77-0

4-hydroxy-1-(8'-sulphonaphtyl)-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole

5-(6'-sulphonaphthyl)azo-1-(8'-sulphonaphthyl)-4-hydroxy-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole

5-(6'-sulphonaphthyl)azo-1-(8'-sulphonaphthyl)-4-hydroxy-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole

Conditions
ConditionsYield
Stage #1: 5-aminonaphthalene-2-sulfonic acid With hydrogenchloride; sodium hydroxide; sodium nitrite at 0 - 5℃; for 3h;
Stage #2: 4-hydroxy-1-(8'-sulphonaphtyl)-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole With sodium carbonate
85%
5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

4-hydroxy-1-(2'-carboxy-4'-sulphophenyl)-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole
776325-75-8

4-hydroxy-1-(2'-carboxy-4'-sulphophenyl)-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole

5-(6'-sulphonaphthyl)azo-1-(2'-carboxy-4'-sulphophenyl)-4-hydroxy-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole

5-(6'-sulphonaphthyl)azo-1-(2'-carboxy-4'-sulphophenyl)-4-hydroxy-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole

Conditions
ConditionsYield
Stage #1: 5-aminonaphthalene-2-sulfonic acid With hydrogenchloride; sodium hydroxide; sodium nitrite at 0 - 5℃; for 3h;
Stage #2: 4-hydroxy-1-(2'-carboxy-4'-sulphophenyl)-3-[N-(2'-oxobenzimidazol-5'-yl)carboxamide]pyrazole With sodium carbonate
85%
pyridine
110-86-1

pyridine

1,8-Naphthalic anhydride
81-84-5

1,8-Naphthalic anhydride

5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

C22H13NO5S*C5H5N

C22H13NO5S*C5H5N

Conditions
ConditionsYield
for 8h; Reflux;81%
di(succinimido) carbonate
74124-79-1

di(succinimido) carbonate

5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

5-amino-2-naphthalenesulfonic acid-N-hydroxysuccinimidyl carbamate
1178554-82-9

5-amino-2-naphthalenesulfonic acid-N-hydroxysuccinimidyl carbamate

Conditions
ConditionsYield
In acetonitrile Reflux;80%
5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

4-nitro-benzoyl chloride
122-04-3

4-nitro-benzoyl chloride

C17H11N2O6S(1-)*Na(1+)

C17H11N2O6S(1-)*Na(1+)

Conditions
ConditionsYield
With sodium carbonate In water; toluene at 20℃; for 12h; pH=4;80%
5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

4-amino-N,N-dimethylaniline
99-98-9

4-amino-N,N-dimethylaniline

acide 7-[(N,N-dimethyl-p-aminophenyl)amino]-8-[(N,N-dimethyl-p-aminophenyl)imino]-5-iminonaphthalene-2-sulfonique

acide 7-[(N,N-dimethyl-p-aminophenyl)amino]-8-[(N,N-dimethyl-p-aminophenyl)imino]-5-iminonaphthalene-2-sulfonique

Conditions
ConditionsYield
With ammonium peroxydisulfate In dimethyl sulfoxide at 20℃; for 5h; oxidative condensation;75%
5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

4-methyl-benzoyl chloride
874-60-2

4-methyl-benzoyl chloride

5-(4-methylbenzamido)naphthalene-2-sulfonic acid

5-(4-methylbenzamido)naphthalene-2-sulfonic acid

Conditions
ConditionsYield
With sodium carbonate In water; toluene pH=5;74%
5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

4-bromo-3-oxo-N-(2'-oxobenzimidazol-5'-yl)butyramide
776325-68-9

4-bromo-3-oxo-N-(2'-oxobenzimidazol-5'-yl)butyramide

5-{N'-[3-bromo-2-oxo-1-(2-oxo-2,3-dihydro-1H-benzoimidazol-5-ylcarbamoyl)-propylidene]-hydrazino}-naphthalene-2-sulfonic acid

5-{N'-[3-bromo-2-oxo-1-(2-oxo-2,3-dihydro-1H-benzoimidazol-5-ylcarbamoyl)-propylidene]-hydrazino}-naphthalene-2-sulfonic acid

Conditions
ConditionsYield
Stage #1: 5-aminonaphthalene-2-sulfonic acid With hydrogenchloride; sodium carbonate; sodium nitrite for 0.416667h; cooling;
Stage #2: 4-bromo-3-oxo-N-(2'-oxobenzimidazol-5'-yl)butyramide With sodium hydroxide at 0 - 3℃;
73%
5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

benzene-1,3-dicarbonyl dichloride
99-63-8

benzene-1,3-dicarbonyl dichloride

disodium 5,5'-[1,3-phenylenebis(carbonylimino)]bis-2-naphthalenesulfonate

disodium 5,5'-[1,3-phenylenebis(carbonylimino)]bis-2-naphthalenesulfonate

Conditions
ConditionsYield
With sodium carbonate In chloroform; water at 25℃; for 16h;72%
C25H20N4O4S

C25H20N4O4S

5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

C35H26N6O7S2

C35H26N6O7S2

Conditions
ConditionsYield
Stage #1: 5-aminonaphthalene-2-sulfonic acid With hydrogenchloride; sodium carbonate; sodium nitrite
Stage #2: C25H20N4O4S With sodium hydroxide at 0 - 3℃; Further stages.;
71%
C24H18N4O3S

C24H18N4O3S

5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

C34H24N6O6S2

C34H24N6O6S2

Conditions
ConditionsYield
Stage #1: 5-aminonaphthalene-2-sulfonic acid With hydrogenchloride; sodium carbonate; sodium nitrite
Stage #2: C24H18N4O3S With sodium hydroxide at 0 - 3℃; Further stages.;
70%
C24H17N5O5S

C24H17N5O5S

5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

C34H23N7O8S2

C34H23N7O8S2

Conditions
ConditionsYield
Stage #1: 5-aminonaphthalene-2-sulfonic acid With hydrogenchloride; sodium carbonate; sodium nitrite
Stage #2: C24H17N5O5S With sodium hydroxide at 0 - 3℃; Further stages.;
70%
2-(4'-oxo-2'-phenyl-1',3'-thiazol-3'-yl)-3-[α-(p-carbethoxyphenylhydrazono)phenoxymethyl]-1,2,4-benzothiadiazine 1,1-dioxide

2-(4'-oxo-2'-phenyl-1',3'-thiazol-3'-yl)-3-[α-(p-carbethoxyphenylhydrazono)phenoxymethyl]-1,2,4-benzothiadiazine 1,1-dioxide

5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

C42H33N7O9S3

C42H33N7O9S3

Conditions
ConditionsYield
Stage #1: 5-aminonaphthalene-2-sulfonic acid With hydrogenchloride; sodium carbonate; sodium nitrite for 0.416667h; cooling;
Stage #2: 2-(4'-oxo-2'-phenyl-1',3'-thiazol-3'-yl)-3-[α-(p-carbethoxyphenylhydrazono)phenoxymethyl]-1,2,4-benzothiadiazine 1,1-dioxide With sodium hydroxide at 0 - 3℃; for 0.166667h;
69%
C24H19N5O3S

C24H19N5O3S

5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

C34H25N7O6S2

C34H25N7O6S2

Conditions
ConditionsYield
Stage #1: 5-aminonaphthalene-2-sulfonic acid With hydrogenchloride; sodium carbonate; sodium nitrite
Stage #2: C24H19N5O3S With sodium hydroxide at 0 - 3℃; Further stages.;
69%
2-(4'-oxo-3'-phenyl-1',3'-thiazol-2'-ylimino)-3-[α-(p-tolylhydrazono)phenoxymethyl]-1,2,4-benzothiadiazine 1,1-dioxide

2-(4'-oxo-3'-phenyl-1',3'-thiazol-2'-ylimino)-3-[α-(p-tolylhydrazono)phenoxymethyl]-1,2,4-benzothiadiazine 1,1-dioxide

5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

C40H30N8O7S3

C40H30N8O7S3

Conditions
ConditionsYield
Stage #1: 5-aminonaphthalene-2-sulfonic acid With hydrogenchloride; sodium carbonate; sodium nitrite for 0.416667h; cooling;
Stage #2: 2-(4'-oxo-3'-phenyl-1',3'-thiazol-2'-ylimino)-3-[α-(p-tolylhydrazono)phenoxymethyl]-1,2,4-benzothiadiazine 1,1-dioxide With sodium hydroxide at 0 - 3℃; for 0.166667h;
61%
5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

N,N’-(dimethylethylenediaminothiosemicarbazanato)-4-(methylthiosemicarbazanato)butane-2,3-diimine
1218759-53-5

N,N’-(dimethylethylenediaminothiosemicarbazanato)-4-(methylthiosemicarbazanato)butane-2,3-diimine

C2H7N*C17H20N6O3S3
1229570-75-5

C2H7N*C17H20N6O3S3

Conditions
ConditionsYield
In acetonitrile Reflux; Inert atmosphere;61%
C30H22N6O6S2

C30H22N6O6S2

5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

C50H34N10O12S4

C50H34N10O12S4

Conditions
ConditionsYield
Stage #1: 5-aminonaphthalene-2-sulfonic acid With hydrogenchloride; sodium carbonate; sodium nitrite
Stage #2: C30H22N6O6S2 With sodium hydroxide at 0 - 3℃; Further stages.;
60%
5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

5-bromonaphthalene-2-sulfonic acid

5-bromonaphthalene-2-sulfonic acid

Conditions
ConditionsYield
With urea; sodium nitrite; copper(I) bromide In sodium hydroxide; water; hydrogen bromide57%
With urea; sodium nitrite; copper(I) bromide In sodium hydroxide; water; hydrogen bromide57%
With urea; sodium nitrite; copper(I) bromide In sodium hydroxide; water; hydrogen bromide57%
With urea; sodium nitrite; copper(I) bromide In sodium hydroxide; water; hydrogen bromide57%
Stage #1: 5-aminonaphthalene-2-sulfonic acid With hydrogen bromide; sodium hydroxide; sodium nitrite In water at -5 - 2℃; for 0.833333h;
Stage #2: With hydrogen bromide; copper(I) bromide In water at 80℃; for 0.5h;
6.16 g
5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

sodium 1,2-naphthoquinone-4-sulfonate

sodium 1,2-naphthoquinone-4-sulfonate

5-((3,4-dioxo-3,4-dihydronaphthalen-1-yl)amino)naphthalene-2-sulfonic acid
724743-88-8

5-((3,4-dioxo-3,4-dihydronaphthalen-1-yl)amino)naphthalene-2-sulfonic acid

Conditions
ConditionsYield
With potassium carbonate In water56.6%
C28H20N6O5S2

C28H20N6O5S2

5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

C48H32N10O11S4

C48H32N10O11S4

Conditions
ConditionsYield
Stage #1: 5-aminonaphthalene-2-sulfonic acid With hydrogenchloride; sodium carbonate; sodium nitrite
Stage #2: C28H20N6O5S2 With sodium hydroxide at 0 - 3℃; Further stages.;
53%
5-aminonaphthalene-2-sulfonic acid
119-79-9

5-aminonaphthalene-2-sulfonic acid

4-methyl-3-nitrobenzoyl chloride
10397-30-5

4-methyl-3-nitrobenzoyl chloride

5-(4-methyl-3-nitrobenzamido)naphthalene-2-sulfonic acid

5-(4-methyl-3-nitrobenzamido)naphthalene-2-sulfonic acid

Conditions
ConditionsYield
With sodium carbonate In water; toluene pH=5;47%

119-79-9Relevant articles and documents

Ionic liquid covered iron-oxide magnetic nanoparticles decorated zeolite nanocomposite for excellent catalytic reduction and degradation of environmental toxic organic pollutants and dyes

Alarifi, Saud,Ali, Daoud,Arumugam, Vasanthakumar,Chandrasekaran, Murugesan,Dass, Avitha,Gao, Yanan,Gengan, Robert M,Moodley, Kandasamy G

, (2021/09/20)

Ionic liquid 2′,3′-epoxypropyl-N-methyl-2-oxopyrrolidinium salicylate ([EPMpyr][SAL]) IL, bonded iron oxide magnetic nanoparticles (MNP) with zeolite modified nanocomposite (IL/MNP/Zeo) was synthesized. This nanocomposite was characterized by micro and macroscopic techniques, namely, Fourier transform infrared spectroscopy (FTIR), x-ray powder diffraction (XRD), scanning electron microscope (SEM), energy dispersive x-ray spectrometry (EDX), transmission electron microscopy (TEM), thermogravimetry and differential scanning calorimetry (TGA&DSC). These techniques have been used to reveal the overall physical properties including functional groups which are present, crystalline nature, morphology, elemental identifications and thermal stability of the nanocomposite respectively. In this case, ionic liquid (IL) and iron oxide magnetic nanoparticles (MNP) were synthesized and characterized. Both IL and MNPs contributed to enhancing the binding property and thermal stability of the nanocomposite. This novel nanocomposite acts as an excellent catalyst for the reduction of several nitroanilines, namely, 2-nitroaniline, 3-nitroaniline, 4-nitroaniline, Nitrophenyl diamine and dyes (Methylene blue and Allura red). In this investigation, time-dependent UV–vis spectroscopy was used to monitor the reduction reactions. Furthermore, the catalyst was removed after completion of the reaction, using an external magnet; then purified and recycled for further reactions with negligible loss of activity. In addition, these reduction reactions are obtained in an aqueous medium which makes them more economical, eco-friendly and easy to handle. This type of research is very helpful in environmental protection; especially the pollution of natural water resources from industrial wastewater.

Bisazo brown reactive dye

-

, (2008/06/13)

A brown reactive dye represented by a free acid of the formula, STR1 wherein R is a hydrogen atom or a C1 to C4 alkyl group, X is --SO2 CH2 CH2 Cl, --SO2 CH=CH2, --SO2 CH2 CH2 OSO3 H or --SO2 CH2 CH2 OPO3 H2, rings A, B and C are each a benzene or naphthalene ring which may have other substituent, m is 0 to 3 and n is 0 to 1. This dye is suitable for dyeing cellulose fibers brown to afford dyeings superior in fastnesses, acid stability, build-up property and level dyeing property.

Reactive yellow dye having both monochlorotriazinyl and vinylsulfone type reactive groups

-

, (2008/06/13)

The compounds represented, in the form of free acid, by the following general formula (I): STR1 (wherein A is STR2 (wherein R3 and R4 are each hydrogen or a methyl, ethyl, methoxy, ethoxy, acetylamino, propionylamino, benzoylamino or ureido group, and R5 and R6 are each hydrogen or a methyl or methoxy group), R1 and R2 are each hydrogen or a methyl, ethyl or sulfomethyl group, X1 and X2 are each hydrogen, chlorine or a methyl, methoxy, carboxyl or sulfonic acid group, m is a number of 0, 1 or 2, and n is a number of 1 or 2, provided that the sum of m and n is 1, 2 or 3). These compounds are capable of dyeing cellulose fibers in yellow with excellent color fastness to hypochlorite, light, perspiration and sunlight and high acid stability.

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