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2-Mercapto-5-methoxybenzothiazole

CAS No.
55690-60-3
Chemical Name:
2-Mercapto-5-methoxybenzothiazole
Synonyms
5-Methoxy-2-benzothiazolethiol;5-METHOXYBENZOTHIAZOLE-2-THIOL;5-Methoxy-2-mercaptobenzothiazole;5-Methoxybenzo[d]thiazole-2-thiol;2-Mercapto-5-methoxybenzothiazole;5-methoxybenzothiazole-2(3H)-thione;5-Methoxy-2(3H)-benzothiazolethione;5-Methoxy-1,3-benzothiazole-2-thiol;2-Mercapto-5-methoxybenzothiazole>2(3H)-Benzothiazolethione, 5-methoxy-
CBNumber:
CB4295134
Molecular Formula:
C8H7NOS2
Molecular Weight:
197.28
MDL Number:
MFCD00185941
MOL File:
55690-60-3.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:52:44

2-Mercapto-5-methoxybenzothiazole Properties

Melting point 190-193°C
Boiling point 340.8±44.0 °C(Predicted)
Density 1.44±0.1 g/cm3(Predicted)
storage temp. Sealed in dry,Room Temperature
form powder to crystal
pka 9.27±0.20(Predicted)
color Light yellow to Yellow to Orange
Water Solubility Insoluble in water.
BRN 142225

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302+H312+H332
Precautionary statements  P261-P264-P270-P271-P280-P301+P312+P330-P302+P352+P312+P362+P364-P304+P340+P312-P501
Safety Statements  22-24/25
HS Code  2934.20.8000
HazardClass  IRRITANT

2-Mercapto-5-methoxybenzothiazole price More Price(25)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical M1277 2-Mercapto-5-methoxybenzothiazole >98.0%(T) 55690-60-3 5g $225 2026-04-30 Buy
Chem-Impex 44074 2-Mercapto-5-methoxybenzothiazole ≥98%(Assaybytitration) 55690-60-3 5G $217.33 2026-05-19 Buy
Matrix Scientific 064341 5-Methoxy-1,3-benzothiazole-2-thiol 55690-60-3 500.00mg $237 2026-05-18 Buy
aablocks AA003MRF 5-Methoxybenzo[d]thiazole-2-thiol 95% 55690-60-3 1g $46 2026-05-28 Buy
aablocks AA003MRF 5-Methoxybenzo[d]thiazole-2-thiol 95% 55690-60-3 5g $168 2026-05-28 Buy
Product number Packaging Price Buy
M1277 5g $225 Buy
44074 5G $217.33 Buy
064341 500.00mg $237 Buy
AA003MRF 1g $46 Buy
AA003MRF 5g $168 Buy

2-Mercapto-5-methoxybenzothiazole Chemical Properties, Uses, Production

Uses

2-Mercapto-5-methoxybenzothiazole is used as an intermediate in organic synthesis.

Synthesis

4-Chloro-3-nitroanisole

10298-80-3

2-MERCAPTO-5-METHOXYBENZOTHIAZOLE

55690-60-3

General procedure for the synthesis of 2-mercapto-5-methoxybenzothiazole from 4-chloro-3-nitroanisole: 244 g of sodium polysulfide solution was mixed with 30 g of 1-chloro-4-methoxy-2-nitrobenzene, followed by the addition of 20 mL of carbon disulfide and continuous stirring. The reaction mixture was heated to reflux and maintained for about 5 hours, during which time a yellow solid precipitate was observed to form. Upon completion of the reaction, the mixture was filtered and the filtrate was diluted to 1000 mL with water to obtain an orange-yellow solution. The solution was neutralized to neutral with 6 M hydrochloric acid, at which point a light yellow solid precipitated. The solid product was collected by filtration, washed well with water and dried. Finally, 29.4 g of the target product 2-mercapto-5-methoxybenzothiazole was obtained in 93.1% yield.

References

[1] Patent: US2010/292285, 2010, A1. Location in patent: Page/Page column 2; 3
[2] Patent: US5451594, 1995, A

2-Mercapto-5-methoxybenzothiazole Preparation Products And Raw materials

2-Mercapto-5-methoxybenzothiazole Suppliers

Global Suppliers ( 65)
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. 025-66113011 13913916777 cfzhang@aikonchem.com China 19902 55
TOKYO CHEMICAL INDUSTRY CO., LTD. 03-36680489 Sales-JP@TCIchemicals.com Japan 28364 80
TCI Europe 320-37350700 sales@tcieurope.eu Europe 23654 75
TCI AMERICA 800-4238616 sales@tciamerica.com Americas 23636 75
9ding chemical ( Shanghai) Limited 4009209199 sales@9dingchem.com China 22497 55
Shanghai Aladdin Bio-Chem Technology Co.,LTD 400-6206333 13167063860 anhua.mao@aladdin-e.com China 29985 65

View Latest Price from 2-Mercapto-5-methoxybenzothiazole manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2-MERCAPTO-5-METHOXYBENZOTHIAZOLE pictures 2020-01-13 2-MERCAPTO-5-METHOXYBENZOTHIAZOLE
55690-60-3
$9.80 1g ≥99% 100kg Career Henan Chemical Co
5-METHOXYBENZOTHIAZOLE-2-THIOL 5-methoxybenzothiazole-2(3H)-thione 2-MERCAPTO-5-METHOXYBENZOTHIAZOLE 98+% 2(3H)-Benzothiazolethione,5-methoxy-(9CI) 5-Methoxy-2(3H)-benzothiazolethione 5-Methoxy-2-benzothiazolethiol 5-Methoxy-2-mercaptobenzothiazole 5-Methoxybenzo[d]thiazole-2(3H)-thione 5-Methoxy-1,3-benzothiazole-2-thiol 5-Methoxybenzo[d]thiazole-2-thiol 5-methoxy-3H-1,3-benzothiazole-2-thione 2-Mercapto-5-methoxybenzothiazole> 2(3H)-Benzothiazolethione, 5-methoxy- 2-Mercapto-5-methoxybenzothiazole 55690-60-3 BENZOTHIAZOLE