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2-Mercapto-5-methoxybenzothiazole

Also known as: 5-Methoxybenzothiazole-2-thiol, 5-Methoxy-2-mercaptobenzothiazole, 5-Methoxy-2-benzothiazolethiol, 5-Methoxybenzo[d]thiazole-2-thiol, 5-Methoxy-2(3H)-benzothiazolethione, 5-methoxy-3H-1,3-benzothiazole-2-thione, 5-methoxybenzothiazole-2(3H)-thione, 2(3H)-Benzothiazolethione,5-methoxy-(9CI), EINECS 259-755-1, MFCD00185941

2-Mercapto-5-methoxybenzothiazole (CAS 55690-60-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H7NOS2 and a molecular weight of 197.27700 g/mol. Key properties include a melting point of 190-193ºC, a boiling point of 340.8ºC at 760 mmHg, a density of 1.44g/cm3 and a flash point of 159.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
55690-60-3
Jingsj CID
J-23513-2
Molecular Formula
C8H7NOS2
Molecular Weight
197.27700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026
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Physicochemical Properties

Melting Point190-193ºC
Boiling Point340.8ºC at 760 mmHg
Density1.44g/cm3
Flash Point159.9ºC
Exact Mass196.99700
PSA89.16000
LogP2.59360
Refractive Index1.728

Customs & Trade Information

HS Code2934999090
Summary2934999090. 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 2-Mercapto-5-methoxybenzothiazole?

The CAS number of 2-Mercapto-5-methoxybenzothiazole is 55690-60-3.

What are the molecular formula and molecular weight of 2-Mercapto-5-methoxybenzothiazole?

2-Mercapto-5-methoxybenzothiazole has molecular formula C8H7NOS2 and molecular weight 197.27700 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2-Mercapto-5-methoxybenzothiazole (CAS 55690-60-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23513-2 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.