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Methyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide

Also known as: 2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic acid methyl ester 1,1-dioxide, Methyl 2-methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide, Methyl 4-hydroxy-2-methyl-1,1-dioxo-2H-1,2-benzothiazine-3-carboxylate, 4-Hydroxy-2-methyl-3-methoxycarbonyl-2H-1,2-benzothiazine-1,1-dioxide, 2H-1,2-Benzothiazine-3-carboxylic acid, 4-hydroxy-2-methyl-, methyl ester, 1,1-dioxide, Methyl 4-hydroxy-2-methyl-1,1-dioxo-1λ6,2-benzothiazine-3-carboxylate

Methyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide (CAS 35511-15-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H11NO5S and a molecular weight of 269.274 g/mol. Key properties include a melting point of 163-165ºC, a boiling point of 439.9±55.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 219.8±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
35511-15-0
Jingsj CID
J-996503-1
Molecular Formula
C11H11NO5S
Molecular Weight
269.274 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point163-165ºC
Boiling Point439.9±55.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point219.8±31.5 °C
Exact Mass269.035797
PSA92.29000
LogP2.25
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.632
Storage Conditions-20?C Freezer

Customs & Trade Information

HS Code2934991000
Summary2934991000. sultones and sultams. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Methyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide?

The CAS number of Methyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide is 35511-15-0.

What are the molecular formula and molecular weight of Methyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide?

Methyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide has molecular formula C11H11NO5S and molecular weight 269.274 g/mol.

What are the upstream and downstream products of Methyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide?

For Methyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide, Upstream Products: Methyl 4-hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide, Dimethyl sulfate, N-Methylsaccharin; Downstream Products: Piroxicam, Isoxicam, Meloxicam.

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

Last updated:

How to cite: Jingsj. "Methyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide (CAS 35511-15-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-996503-1 (accessed 2026-11-09).

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