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3-Chloro-1,2-benzisothiazole

Also known as: 1,2-Benzisothiazole, 3-chloro-, 3-Chloro-1,2-benzothiazole, 3-Chlorobenzo[d]isothiazole, 3-Chlorobenzisothiazole, Ziprasidone intermediates

3-Chloro-1,2-benzisothiazole (CAS 7716-66-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H4ClNS and a molecular weight of 169.631 g/mol. Key properties include a melting point of 38-39°C, a boiling point of 176.1±23.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 60.3±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
7716-66-7
Jingsj CID
J-41065-1
Molecular Formula
C7H4ClNS
Molecular Weight
169.631 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point38-39°C
Boiling Point176.1±23.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point60.3±22.6 °C
Exact Mass168.975296
PSA41.13000
LogP3.12
Vapor Pressure1.5±0.3 mmHg at 25°C
Refractive Index1.696

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 3-Chloro-1,2-benzisothiazole?

The CAS number of 3-Chloro-1,2-benzisothiazole is 7716-66-7.

What are the molecular formula and molecular weight of 3-Chloro-1,2-benzisothiazole?

3-Chloro-1,2-benzisothiazole has molecular formula C7H4ClNS and molecular weight 169.631 g/mol.

What are the upstream and downstream products of 3-Chloro-1,2-benzisothiazole?

For 3-Chloro-1,2-benzisothiazole, Upstream Products: 1,2-Benzisothiazol-3(2H)-one, Water, 2,2'-dithiodibenzoyl chloride; Downstream Products: 3-(1-Piperazinyl)-1,2-benzisothiazole hydrochloride, 3-(1-Piperazinyl)-1,2-benzisothiazole, 1,2-Benzisothiazol-3-amine.

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-Chloro-1,2-benzisothiazole (CAS 7716-66-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-41065-1 (accessed 2026-11-09).

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