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2-Methyl-1,3-benzothiazole-5-carboxylic acid

Also known as: 2-Methylbenzo[d]thiazole-5-carboxylic acid, 5-Benzothiazolecarboxylic acid, 2-methyl-, 2-Methyl-5-carboxy-benzothiazol, 2-Methyl-benzothiazole-5-carboxylic acid, 2-methyl-1,3-benzothiazole-5-carboxylic acid

2-Methyl-1,3-benzothiazole-5-carboxylic acid (CAS 24851-69-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H7NO2S and a molecular weight of 193.222 g/mol. Key properties include a boiling point of 385.2±15.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 186.8±20.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
24851-69-2
Jingsj CID
J-1495224-0
Molecular Formula
C9H7NO2S
Molecular Weight
193.222 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point385.2±15.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point186.8±20.4 °C
Exact Mass193.019745
PSA78.43000
LogP2.08
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.702

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 2-Methyl-1,3-benzothiazole-5-carboxylic acid?

The CAS number of 2-Methyl-1,3-benzothiazole-5-carboxylic acid is 24851-69-2.

What are the molecular formula and molecular weight of 2-Methyl-1,3-benzothiazole-5-carboxylic acid?

2-Methyl-1,3-benzothiazole-5-carboxylic acid has molecular formula C9H7NO2S and molecular weight 193.222 g/mol.

What are the upstream and downstream products of 2-Methyl-1,3-benzothiazole-5-carboxylic acid?

For 2-Methyl-1,3-benzothiazole-5-carboxylic acid, Upstream Products: 2-Methylbenzo[d]thiazole-5-carbaldehyde, acetic acid, 4-Chloro-3-nitrobenzoic acid; Downstream Products: 2-Methylbenzo[d]thiazole-5-carbaldehyde.

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-Methyl-1,3-benzothiazole-5-carboxylic acid (CAS 24851-69-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1495224-0 (accessed 2026-11-09).

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