5-Chloro-2-mercaptobenzothiazole
Also known as: 5-Chloro-2-benzothiazolethiol, 5-Chlorobenzo[d]thiazole-2(3H)-thione, 5-Chloro-3H-1,3-benzothiazole-2-thione, 5-Chloro-2(3H)-benzothiazolethione, CMBT
5-Chloro-2-mercaptobenzothiazole (CAS 5331-91-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H4ClNS2 and a molecular weight of 201.696 g/mol. Key properties include a melting point of 198-200 °C(lit.), a boiling point of 333.2±44.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 155.3±28.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5331-91-9
- Jingsj CID
- J-6131-4
- Molecular Formula
- C7H4ClNS2
- Molecular Weight
- 201.696 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 198-200 °C(lit.) |
|---|---|
| Boiling Point | 333.2±44.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 155.3±28.4 °C |
| Exact Mass | 200.947372 |
| PSA | 79.93000 |
| LogP | 3.41 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.786 |
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 5-Chloro-2-mercaptobenzothiazole?
The CAS number of 5-Chloro-2-mercaptobenzothiazole is 5331-91-9.
What are the molecular formula and molecular weight of 5-Chloro-2-mercaptobenzothiazole?
5-Chloro-2-mercaptobenzothiazole has molecular formula C7H4ClNS2 and molecular weight 201.696 g/mol.
What are the upstream and downstream products of 5-Chloro-2-mercaptobenzothiazole?
For 5-Chloro-2-mercaptobenzothiazole, Upstream Products: 2,5-Dichloroaniline, Potassium ethylxanthate, Carbon disulphide; Downstream Products: 5-Chloro-2-(methylthio)benzothiazole, 5-Chlorobenzothiazole, 5-Chloro-2-benzothiazolinone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Chloro-2-mercaptobenzothiazole (CAS 5331-91-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6131-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.