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2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetic acid

Also known as: 3,4-dihydro-3-oxo-2H-1,4-benzothiazine-2-acetic acid, 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-2-acetic acid, 3-oxo-1,4-benzothiazin-2-ylacetic acid, 2-(3-oxo-4H-1,4-benzothiazin-2-yl)acetic acid, 2-(3-oxo-1,4-benzothiazin-2-yl)acetic acid, 2H-1,4-Benzothiazine-2-acetic acid, 3,4-dihydro-3-oxo-

2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetic acid (CAS 6270-74-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H9NO3S and a molecular weight of 223.24800 g/mol. Key properties include a melting point of 182-186ºC(lit.), a boiling point of 509.9ºC at 760 mmHg, a density of 1.391 g/cm3 and a flash point of 262.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6270-74-2
Jingsj CID
J-12163-1
Molecular Formula
C10H9NO3S
Molecular Weight
223.24800 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point182-186ºC(lit.)
Boiling Point509.9ºC at 760 mmHg
Density1.391 g/cm3
Flash Point262.2ºC
Exact Mass223.03000
PSA91.70000
LogP1.71210

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 2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetic acid?

The CAS number of 2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetic acid is 6270-74-2.

What are the molecular formula and molecular weight of 2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetic acid?

2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetic acid has molecular formula C10H9NO3S and molecular weight 223.24800 g/mol.

What are the upstream and downstream products of 2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetic acid?

For 2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetic acid, Upstream Products: Maleic anhydride, 2-Aminothiophenol, Maleic acid; Downstream Products: Ethyl 2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetate, methyl 2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetate.

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-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetic acid (CAS 6270-74-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12163-1 (accessed 2026-11-09).

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