5-Methoxybenzo[d]thiazole-2-carboxylic acid

5-甲氧基苯并[d]噻唑-2-羧酸

Also known as: 2-Benzothiazolecarboxylic acid, 5-methoxy-, 5-Methoxy-1,3-benzothiazole-2-carboxylic acid, 5-Methoxybenzothiazole-2-carboxylic acid, 2-Benzothiazolecarboxylicacid,5-methoxy-(7CI,9CI)

5-Methoxybenzo[d]thiazole-2-carboxylic acid (CAS 90322-41-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H7NO3S and a molecular weight of 209.222 g/mol. It is also known as 2-Benzothiazolecarboxylic acid, 5-methoxy-, 5-Methoxy-1,3-benzothiazole-2-carboxylic acid and 5-Methoxybenzothiazole-2-carboxylic acid. Key properties include a boiling point of 412.3±37.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 203.2±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 90322-41-1
Jingsj CID: J-1042166-0
Molecular Formula: C₉H₇NO₃S
Chinese Name: 5-甲氧基苯并[d]噻唑-2-羧酸
Molecular Weight: 209.222 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	412.3±37.0 °C at 760 mmHg
Density	1.5±0.1 g/cm3
Flash Point	203.2±26.5 °C

Frequently Asked Questions

What is the CAS number of 5-Methoxybenzo[d]thiazole-2-carboxylic acid?

The CAS number of 5-Methoxybenzo[d]thiazole-2-carboxylic acid is 90322-41-1.

What are the molecular formula and molecular weight of 5-Methoxybenzo[d]thiazole-2-carboxylic acid?

5-Methoxybenzo[d]thiazole-2-carboxylic acid has molecular formula C9H7NO3S and molecular weight 209.222 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "5-Methoxybenzo[d]thiazole-2-carboxylic acid (CAS 90322-41-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1042166-0 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.