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2,5-Dimercapto-1,3,4-thiadiazole | CAS 1072-71-5
Cas No: 1072-71-5
USD $ 2.0-2.0 / Gram 1 Gram 300 Metric Ton/Year Jinan Finer Chemical Co., Ltd Contact Supplier
High quality 2,5-Dimercapto-1,3,4- Thiadiazole supplier in China
Cas No: 1072-71-5
No Data No Data Metric Ton/Day Simagchem Corporation Contact Supplier
Bismuththiol
Cas No: 1072-71-5
No Data 10 Milligram Amadis Chemical Co., Ltd. Contact Supplier
Factory Price API 99% Bismuththiol 1072-71-5 GMP Manufacturer
Cas No: 1072-71-5
USD $ 0.1-0.1 / Gram 1 Gram 100 Metric Ton/Year Xi'an Xszo Chem Co., Ltd. Contact Supplier
Factory Supply 1,3,4-thiadiazole-2,5-dithiol
Cas No: 1072-71-5
No Data 1 1 Ality Chemical Corporation Contact Supplier
Bismuththiol Manufacturer/High quality/Best price/In stock
Cas No: 1072-71-5
USD $ 3.0-3.0 / Kilogram 1 Kilogram 1-100 Metric Ton/Month Dayang Chem (Hangzhou) Co.,Ltd. Contact Supplier
2,5-Dimercapto-1,3,4-thiadiazole CAS:1072-71-5
Cas No: 1072-71-5
USD $ 1.0-1.0 / Kilogram 1 Kilogram 1000 Metric Ton/Year Henan Sinotech Import&Export Corporation Contact Supplier
Bismuththiol_
Cas No: 1072-71-5
No Data 1 Kilogram 10 Metric Ton/Month Henan Tianfu Chemical Co., Ltd. Contact Supplier
Bismuththiol 1072-71-5 crystal powder
Cas No: 1072-71-5
No Data 100 Gram 20000 Kilogram/Day Hubei XinRunde Chemical Co., Ltd Contact Supplier
Valued High Quality CAS 1072-71-5 with high-quality service
Cas No: 1072-71-5
USD $ 146.0-176.0 / Gram 10 Gram 1000 Kilogram/Day Zhuozhou Wenxi import and Export Co., Ltd Contact Supplier

1072-71-5 Usage

Description

Dimercapto-1,3,4-thiadiazole (DMTD) is a low-molecular- weight aromatic compound used in the production of cop per corrosion inhibitors for engine oils, flame retardants and photographic development chemicals. Seven cases of industrial allergic sensitization were reported in a manufacturing plant.

Chemical Properties

white to light yellow crystal powde

Uses

Pharmaceutical intermediates; metallic passivator;antioxidant

Uses

2,5-Dimercapto-1,3,4-thiadiazole is used in synthesizing polymers and heavy metal and basic salts. It acts as an additive in lubricating oils, greases and in electrode compositions. It also acts as an intermediate for pharmaceuticals and dyes, as a chelating agent in the analysis of metals. It also serves as an anticorrosion and antirust agent.

Contact allergens

This low-molecular-weight aromatic compound is used in the production of copper corrosion inhibitors for engine oils, fame retardants, and photographic devel- opment chemicals. Seven cases of industrial allergic sensitization were reported in a manufacturing plant.
InChI:InChI=1/C2H4N2S3/c5-2-1-3-4(6)7-2/h1,3,5-6H

1072-71-5 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Alfa Aesar (A12615)  2,5-Dimercapto-1,3,4-thiadiazole, 97% (dry wt.), water <3%    1072-71-5 50g 432.0CNY Detail
Alfa Aesar (A12615)  2,5-Dimercapto-1,3,4-thiadiazole, 97% (dry wt.), water <3%    1072-71-5 250g 1932.0CNY Detail
Aldrich (D129003)  1,3,4-Thiadiazole-2,5-dithiol  98% 1072-71-5 D129003-100G 1,041.30CNY Detail

1072-71-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 10, 2017

Revision Date: Aug 10, 2017

1.Identification

1.1 GHS Product identifier

Product name Bismuththiol

1.2 Other means of identification

Product number -
Other names 2,5-Dimercapto-1,3,4-thiadiazole

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Lubricants and lubricant additives
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:1072-71-5 SDS

1072-71-5Synthetic route

carbon disulfide
75-15-0

carbon disulfide

2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

Conditions
ConditionsYield
With hydrazine hydrate; sodium hydroxide In ethanol; water at 0℃; for 17.5h; Reflux;98%
With hydrazine hydrate In ethanol at 80℃; for 4h; Temperature;93%
With sulfuric acid; hydrazine hydrate; sodium hydroxide87%
malonic acid dihydrazide
3815-86-9

malonic acid dihydrazide

carbon disulfide
75-15-0

carbon disulfide

A

malonic acid
141-82-2

malonic acid

B

2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

Conditions
ConditionsYield
Stage #1: malonic acid dihydrazide; carbon disulfide With potassium hydroxide In ethanol for 3h; Rearrangement; cyclization; Heating;
Stage #2: With hydrogenchloride In ethanol Hydrolysis; ring cleavage;
A n/a
B 90%
carbon disulfide
75-15-0

carbon disulfide

succinic acid dihydrazide
4146-43-4

succinic acid dihydrazide

A

succinic acid
110-15-6

succinic acid

B

2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

Conditions
ConditionsYield
Stage #1: carbon disulfide; succinic acid dihydrazide With potassium hydroxide In ethanol for 3h; Rearrangement; cyclization; Heating;
Stage #2: With hydrogenchloride In ethanol Hydrolysis; ring cleavage;
A n/a
B 90%
5-mercapto-1,3,4-thiadiazole-2(3H)-thione
1072-71-5

5-mercapto-1,3,4-thiadiazole-2(3H)-thione

2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

Conditions
ConditionsYield
In argon matrix at -263.16℃; for 2h; UV-irradiation;
2,5-dimercapto-1,3,4-thiadiazole mono-sodium salt

2,5-dimercapto-1,3,4-thiadiazole mono-sodium salt

2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

Conditions
ConditionsYield
Stage #1: 2,5-dimercapto-1,3,4-thiadiazole mono-sodium salt With sulfuric acid In water at 20℃; Inert atmosphere;
Stage #2: Industry scale;
1-acryloyloxymethyl-3,4-epoxycyclohexane
64630-63-3

1-acryloyloxymethyl-3,4-epoxycyclohexane

2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

C22H30N2O6S3

C22H30N2O6S3

Conditions
ConditionsYield
With 2,5-bis(1,1-dimethylethyl)-1,4-benzenediol at 60℃; for 3h;99.6%
methacrylic acid 7-oxabicyclo[4.1.0]hept-3-ylmethyl ester

methacrylic acid 7-oxabicyclo[4.1.0]hept-3-ylmethyl ester

2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

C24H34N2O6S3

C24H34N2O6S3

Conditions
ConditionsYield
With 2,5-bis(1,1-dimethylethyl)-1,4-benzenediol at 40℃; for 5h;99.2%
methacrylic acid 7-oxabicyclo[4.1.0]hept-3-ylmethyl ester

methacrylic acid 7-oxabicyclo[4.1.0]hept-3-ylmethyl ester

1-acryloyloxymethyl-3,4-epoxycyclohexane
64630-63-3

1-acryloyloxymethyl-3,4-epoxycyclohexane

2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

C23H32N2O6S3

C23H32N2O6S3

Conditions
ConditionsYield
With 2,5-bis(1,1-dimethylethyl)-1,4-benzenediol In isopropyl alcohol at 70℃; for 4h;98.9%
2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

1-chloro-2,4-dinitro-benzene
97-00-7

1-chloro-2,4-dinitro-benzene

2,5-bis(2,4-dinitrophenylthio)-1,3,4-thiadiazole

2,5-bis(2,4-dinitrophenylthio)-1,3,4-thiadiazole

Conditions
ConditionsYield
With sodium hydroxide In ethanol; water at 20℃; for 24h;98%
With potassium hydroxide In water; N,N-dimethyl-formamide Heating;93%
2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

1,3,4-thiadiazole-2,5-disulfonic acid

1,3,4-thiadiazole-2,5-disulfonic acid

Conditions
ConditionsYield
With potassium permanganate Heating;98%
α-bromoacetophenone
70-11-1

α-bromoacetophenone

2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

2-({5-[(2-oxo-2-phenylethyl)sulfanyl]-1,3,4-thiadiazol-2-yl}sulfanyl)-1-phenyl-1-ethanone

2-({5-[(2-oxo-2-phenylethyl)sulfanyl]-1,3,4-thiadiazol-2-yl}sulfanyl)-1-phenyl-1-ethanone

Conditions
ConditionsYield
With zinc(II) oxide In neat (no solvent) at 25 - 30℃;98%
Stage #1: 2,5-Dimercapto-1,3,4-thiadiazole With triethylamine In ethanol for 0.25h;
Stage #2: α-bromoacetophenone In ethanol for 3h; Reflux;
87%
2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

2-Bromo-4'-methoxyacetophenone
2632-13-5

2-Bromo-4'-methoxyacetophenone

1-(4-methoxyphenyl)-2-[(5-{[2-(4-methoxyphenyl)-2-oxoethyl]sulfanyl}-1,3,4-thiadiazol-2-yl)sulfanyl]-1-ethanone

1-(4-methoxyphenyl)-2-[(5-{[2-(4-methoxyphenyl)-2-oxoethyl]sulfanyl}-1,3,4-thiadiazol-2-yl)sulfanyl]-1-ethanone

Conditions
ConditionsYield
With zinc(II) oxide In neat (no solvent) at 25 - 30℃;94%
Stage #1: 2,5-Dimercapto-1,3,4-thiadiazole With triethylamine In ethanol for 0.25h;
Stage #2: 2-Bromo-4'-methoxyacetophenone In ethanol for 3h; Reflux;
87%
2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

para-bromophenacyl bromide
99-73-0

para-bromophenacyl bromide

1-(4-bromophenyl)-2-[(5-{[2-(4-bromophenyl)-2-oxoethyl]sulfanyl}-1,3,4-thiadiazol-2-yl)sulfanyl]-1-ethanone

1-(4-bromophenyl)-2-[(5-{[2-(4-bromophenyl)-2-oxoethyl]sulfanyl}-1,3,4-thiadiazol-2-yl)sulfanyl]-1-ethanone

Conditions
ConditionsYield
With zinc(II) oxide In neat (no solvent) at 25 - 30℃;94%
Stage #1: 2,5-Dimercapto-1,3,4-thiadiazole With triethylamine In ethanol for 0.25h;
Stage #2: para-bromophenacyl bromide In ethanol for 3h; Reflux;
89%
isooctylthiochloride

isooctylthiochloride

2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

2,5-bis(isooctyldithio)-1,3,4-thiadiazole

2,5-bis(isooctyldithio)-1,3,4-thiadiazole

Conditions
ConditionsYield
In 1,2-dichloro-ethane at 30℃; for 3h;94%
carbonyldihydridotris(triphenylphosphine)osmium
36179-61-0, 12104-84-6

carbonyldihydridotris(triphenylphosphine)osmium

2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

carbonylbis(1,3,4-thiadiazole-2,5-dithiolato)bis(triphenylphosphine)osmium(II)

carbonylbis(1,3,4-thiadiazole-2,5-dithiolato)bis(triphenylphosphine)osmium(II)

Conditions
ConditionsYield
In toluene the mixt. of Os complex and ligand was heated under reflux for 4 h; ppt. was filtered off, washed with toluene, ethanol, n-hexane, dried invac., elem. anal.;93%
2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

4-chlorobenzoylmethyl bromide
536-38-9

4-chlorobenzoylmethyl bromide

1-(4-chlorophenyl)-2-[(5-{[2-(4-chlorophenyl)-2-oxoethyl]sulfanyl}-1,3,4-thiadiazol-2-yl)sulfanyl]-1-ethanone

1-(4-chlorophenyl)-2-[(5-{[2-(4-chlorophenyl)-2-oxoethyl]sulfanyl}-1,3,4-thiadiazol-2-yl)sulfanyl]-1-ethanone

Conditions
ConditionsYield
With zinc(II) oxide In neat (no solvent) at 25 - 30℃;93%
Stage #1: 2,5-Dimercapto-1,3,4-thiadiazole With triethylamine In ethanol for 0.25h;
Stage #2: 4-chlorobenzoylmethyl bromide In ethanol for 3h; Reflux;
87%
2-Isocyanatoethyl methacrylate
30674-80-7

2-Isocyanatoethyl methacrylate

2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

C16H20N4O6S3

C16H20N4O6S3

Conditions
ConditionsYield
In acetone at 20℃; for 5.5h;92.4%
In acetic acid butyl ester at 50℃;76%
carbon disulfide
75-15-0

carbon disulfide

didecylamine
1120-49-6

didecylamine

2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

C44H84N4S5

C44H84N4S5

Conditions
ConditionsYield
Stage #1: carbon disulfide; didecylamine; 2,5-Dimercapto-1,3,4-thiadiazole With sodium ethanolate In butan-1-ol at 0℃; for 5h;
Stage #2: With ammonium tetramolybdate In butan-1-ol at 130℃; under 3750.38 Torr; for 5h; Sealed tube; Inert atmosphere;
92.1%
triphenylbismuthane
603-33-8

triphenylbismuthane

2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

2C2HN2S3(1-)*Bi(3+)*C6H5(1-)

2C2HN2S3(1-)*Bi(3+)*C6H5(1-)

Conditions
ConditionsYield
In ethanol; toluene at 112℃; for 0.166667h; Microwave irradiation;92%
4-bromoethylbutanoate
2969-81-5

4-bromoethylbutanoate

2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

diethyl 4,4′-[(1,3,4-thiadiazol-2,5diyl)bis(sulfanediyl)]dibutanoate

diethyl 4,4′-[(1,3,4-thiadiazol-2,5diyl)bis(sulfanediyl)]dibutanoate

Conditions
ConditionsYield
Stage #1: 2,5-Dimercapto-1,3,4-thiadiazole With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 2h; Reflux;
Stage #2: Ethyl 4-bromobutyrate In N,N-dimethyl-formamide for 8h; Reflux;
92%
2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

1,3-dimethyl-5-chloro-pyrazole-4-carbonyl chloride
27006-83-3

1,3-dimethyl-5-chloro-pyrazole-4-carbonyl chloride

C14H12Cl2N6O2S3

C14H12Cl2N6O2S3

Conditions
ConditionsYield
With potassium carbonate In chloroform at 0 - 20℃; for 6h;92%
S-tert-butylsulfinimide
146374-27-8

S-tert-butylsulfinimide

2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

2,5-bis(2-tert-butyldisulfanyl)-1,3,4-thiadiazole

2,5-bis(2-tert-butyldisulfanyl)-1,3,4-thiadiazole

Conditions
ConditionsYield
With copper(l) iodide; magnesium sulfate In N,N-dimethyl-formamide at 100℃; for 24h; Sealed tube;92%
copper(II) acetate monohydrate
6046-93-1

copper(II) acetate monohydrate

2,5-Dimercapto-1,3,4-thiadiazole
1072-71-5

2,5-Dimercapto-1,3,4-thiadiazole

C2N2S3(2-)*Cu(2+)

C2N2S3(2-)*Cu(2+)

Conditions
ConditionsYield
With potassium hydroxide In water at 60℃; for 2h;92%
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