7-Chloro-2H-1,4-benzothiazin-3(4H)-one

Also known as: 7-Chloro-2H-benzo[b][1,4]thiazin-3(4H)-one, 7-chloro-4H-1,4-benzothiazin-3-one, 7-chloro-3,4-dihydro-3-oxo-2H-1,4-benzothiazine, 5-Chlor-2-amino-phenylmercaptoessigsaeure-lactam, 5-Chlor-2-amino-phenylthioglykolsaeure-lactam, 3-chloro-10-thia-7-azabicyclo[4.4.0]deca-2,4,11-trien-8-one, TIMTEC-BB SBB003549, MFCD00127344

7-Chloro-2H-1,4-benzothiazin-3(4H)-one (CAS 5333-05-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H6ClNOS and a molecular weight of 199.65700 g/mol. Key properties include a melting point of 212-216 °C(lit.), a boiling point of 383.9ºC at 760mmHg, a density of 1.423g/cm3 and a flash point of 185.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 5333-05-1
Jingsj CID: J-1526209-6
Molecular Formula: C₈H₆ClNOS
Molecular Weight: 199.65700 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	212-216 °C(lit.)
Boiling Point	383.9ºC at 760mmHg
Density	1.423g/cm3
Flash Point	185.9ºC
Exact Mass	198.98600
PSA	54.40000
LogP	2.52220
Refractive Index	1.637

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 7-Chloro-2H-1,4-benzothiazin-3(4H)-one?

The CAS number of 7-Chloro-2H-1,4-benzothiazin-3(4H)-one is 5333-05-1.

What are the molecular formula and molecular weight of 7-Chloro-2H-1,4-benzothiazin-3(4H)-one?

7-Chloro-2H-1,4-benzothiazin-3(4H)-one has molecular formula C8H6ClNOS and molecular weight 199.65700 g/mol.

What are the upstream and downstream products of 7-Chloro-2H-1,4-benzothiazin-3(4H)-one?

For 7-Chloro-2H-1,4-benzothiazin-3(4H)-one, Upstream Products: 2-Amino-5-chlorobenzenethiol, Methyl bromoacetate, ethyl chloroacetate.

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. "7-Chloro-2H-1,4-benzothiazin-3(4H)-one (CAS 5333-05-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1526209-6 (accessed 2026-11-09).

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