6-Bromo-1,2-benzisothiazole-3-carboxylic acid

Also known as: 6-bromo-1,2-benzothiazole-3-carboxylic acid, 6-bromobenzo[d]isothiazole-3-carboxylic acid, 6-Bromobenzodisothiazol-3-carboxylic acid, 6-Bromobenzoisothiazole-3-carboxylic Acid, 6-Bromo-1,2-benzenisothiazole-carboxylic acid, 1,2-Benzisothiazole-3-carboxylic acid, 6-bromo-

6-Bromo-1,2-benzisothiazole-3-carboxylic acid (CAS 677304-75-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H4BrNO2S and a molecular weight of 258.09200 g/mol. Key properties include a boiling point of 337.5ºC at 760 mmHg and a density of 1.912. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 677304-75-5
Jingsj CID: J-1024538-2
Molecular Formula: C₈H₄BrNO₂S
Molecular Weight: 258.09200 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	337.5ºC at 760 mmHg
Density	1.912
Exact Mass	256.91500
PSA	78.43000
LogP	2.75700
Refractive Index	1.753
Storage Conditions	2-8℃

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 6-Bromo-1,2-benzisothiazole-3-carboxylic acid?

The CAS number of 6-Bromo-1,2-benzisothiazole-3-carboxylic acid is 677304-75-5.

What are the molecular formula and molecular weight of 6-Bromo-1,2-benzisothiazole-3-carboxylic acid?

6-Bromo-1,2-benzisothiazole-3-carboxylic acid has molecular formula C8H4BrNO2S and molecular weight 258.09200 g/mol.

What are the upstream and downstream products of 6-Bromo-1,2-benzisothiazole-3-carboxylic acid?

For 6-Bromo-1,2-benzisothiazole-3-carboxylic acid, Upstream Products: 6-Bromo-1,2-benzisothiazole-3-carboxamide, 3-Bromothiophenol; Downstream Products: Ethyl 6-bromobenzo[d]isothiazole-3-carboxylate, tert-butyl 6-bromobenzo[d]isothiazole-3-carboxylate.

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

Last updated: 8/21/2026

How to cite: Jingsj. "6-Bromo-1,2-benzisothiazole-3-carboxylic acid (CAS 677304-75-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1024538-2 (accessed 2026-11-09).

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