5-Methyl-2-mercaptobenzothiazole
- CAS No.
- 21303-50-4
- Chemical Name:
- 5-Methyl-2-mercaptobenzothiazole
- Synonyms
- 5-Methylbenzo[d]thiazole-2-thiol;5-Methyl-2-benzothiazolethiol;2-Mercapto-5-methylbenzothiazole;2-Mercapto-5-methyl bezimidazole;5-Methyl-2-mercaptobenzothiazole;5-Methyl-2(3H)-benzothiazolethione;2(3H)-Benzothiazolethione, 5-methyl-;5-Methylbenzo[d]thiazole-2(3h)-thione;5-methyl-3H-1,3-benzothiazole-2-thione;2(3H)-Benzothiazolethione,5-methyl-(9CI)
- CBNumber:
- CB2969192
- Molecular Formula:
- C8H7NS2
- Molecular Weight:
- 181.28
- MDL Number:
- MFCD11044825
- MOL File:
- 21303-50-4.mol
- MSDS File:
- SDS
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302-H319 |
| Precautionary statements | P305+P351+P338 |
5-Methyl-2-mercaptobenzothiazole price
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Heterocyclics | JR-015093 | 2-Mercapto-5-methylbenzothiazole 97% | 21303-50-4 | 1g | $135 | 2026-06-05 | Buy |
| Heterocyclics | JR-015093 | 2-Mercapto-5-methylbenzothiazole 97% | 21303-50-4 | 5g | $440 | 2026-06-05 | Buy |
| aablocks | AA0072W8 | 5-Methylbenzo[d]thiazole-2-thiol 98% | 21303-50-4 | 10g | $1138 | 2026-05-28 | Buy |
| ACHEMBLOCK | AD288517 | 5-Methylbenzo[d]thiazole-2(3h)-thione 95% | 21303-50-4 | 1G | $230 | 2026-05-27 | Buy |
| ACHEMBLOCK | AD288517 | 5-Methylbenzo[d]thiazole-2(3h)-thione 95% | 21303-50-4 | 5G | $920 | 2026-05-27 | Buy |
5-Methyl-2-mercaptobenzothiazole Chemical Properties, Uses, Production
Synthesis
75-15-0
95-81-8
21303-50-4
Synthesis of 5-methyl-2-mercaptobenzothiazole (10): 2-chloro-5-methylaniline (9, 1.00 g, 7.06 mmol) and potassium carbonate (K2CO3, 2.80 g, 28.2 mmol) were suspended in N,N-dimethylformamide (DMF, 20 mL) under protection of nitrogen. Subsequently, carbon disulfide (CS2, 0.50 mL, 8.50 mmol) was added to the suspension. The reaction mixture was heated and reacted at 150 °C for 16 hours. Upon completion of the reaction, it was cooled to room temperature, the reaction mixture was diluted with deionized water (30 mL) and acidified with 1 N hydrochloric acid (HCl) to a pH of about 1. The resulting precipitate was collected by filtration, washed several times with deionized water, and finally dried under vacuum in the presence of phosphorus pentoxide (P2O5) to afford the target product 5-methyl-2-mercaptobenzothiazole (10, 0.35 g, Yield 27%).
References
[1] Patent: WO2006/122156, 2006, A2. Location in patent: Page/Page column 126



5-Methyl-2-mercaptobenzothiazole Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Beijing Taiya Jie Technology Development Co., Ltd. | 021-33690831-8001 13552411790;18616022633 | postmaster@tyjchem.cn | China | 1541 | 55 |
| Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. | 025-66113011 13913916777 | cfzhang@aikonchem.com | China | 19902 | 55 |
| Nanjing Duolong Bio-tech Co.,Ltd. | 18905173768 | 52513593@qq.com | China | 2337 | 50 |
| Shanghai KaiYuLin pharmaceutical technology co., LTD | 021-18721936-595 18721936595 | shkylpharma@126.com | China | 757 | 55 |
| Cool Pharm, Ltd | 021-60455363 18019463053 | sales@coolpharm.com | China | 8455 | 58 |
| Yancheng Schiemann Biological Technology Co.,Ltd | 0515-88280676; 18921872653 | sales@ximanbio.com | China | 1524 | 56 |
| BioPharmaMatrix,Inc. | 0510-86010668 13395169561; | sales@biopharmamatrix.com | China | 4981 | 55 |
| Zhengzhou Acme Chemical Co., Ltd. | 0371-0371-55629727 13323845623 | 2885676761@qq.com | China | 9957 | 58 |
| Amadis Chemical Company Limited | 571-89925085 | sales@amadischem.com | China | 131885 | 58 |
| Shanghai Qianlai Medical Technology Co., Ltd. | 482109853 | info@qianlaiyiyao.com | China | 405 | 58 |





