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3-Methyl-2(3H)-benzothiazolone

Also known as: 2(3H)-Benzothiazolone, 3-methyl-, 2-oxo-3-methylbenzothiazole, 3-Methyl-1,3-benzothiazol-2(3H)-one, 3-Methyl-3H-benzothiazol-2-one, 3-Methylbenzo[d]thiazol-2(3H)-one, 3-methyl-1,3-benzothiazol-2-one, 3-methyl-2-benzothiazolinone, 3-methylbenzothiazolin-2-one, N-methyl-2(3H)-benzothiazolone, Phenylephrine Impurity 103

3-Methyl-2(3H)-benzothiazolone (CAS 2786-62-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H7NOS and a molecular weight of 165.21200 g/mol. Key properties include a melting point of 74-77ºC(lit.), a boiling point of 294.3ºC at 760mmHg, a density of 1.315g/cm3 and a flash point of 131.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2786-62-1
Jingsj CID
J-17983-9
Molecular Formula
C8H7NOS
Molecular Weight
165.21200 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point74-77ºC(lit.)
Boiling Point294.3ºC at 760mmHg
Density1.315g/cm3
Flash Point131.8ºC
Exact Mass165.02500
PSA50.24000
LogP1.60000
Refractive Index1.672

Customs & Trade Information

HS Code2934200090
Summary2934200090. other compounds containing in the structure a benzothiazole ring-system (whether or not hydrogenated), not further fused. 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 3-Methyl-2(3H)-benzothiazolone?

The CAS number of 3-Methyl-2(3H)-benzothiazolone is 2786-62-1.

What are the molecular formula and molecular weight of 3-Methyl-2(3H)-benzothiazolone?

3-Methyl-2(3H)-benzothiazolone has molecular formula C8H7NOS and molecular weight 165.21200 g/mol.

What are the upstream and downstream products of 3-Methyl-2(3H)-benzothiazolone?

For 3-Methyl-2(3H)-benzothiazolone, Upstream Products: 2-Hydroxybenzothiazole, 2-Methoxy-1,3-benzothiazole, Chloromethane; Downstream Products: 3-Methyl-1,3-benzothiazole-2(3H)-thione, 3-Methylbenzothiazolium iodide, 6-Bromo-3-methyl-1,3-benzothiazol-2(3H)-one.

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

Last updated:

How to cite: Jingsj. "3-Methyl-2(3H)-benzothiazolone (CAS 2786-62-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-17983-9 (accessed 2026-11-09).

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