Methyl 4-hydroxy-2H-thieno[2,3-e][1,2]thiazin… 98827-44-2

Name: Methyl 4-hydroxy-2H-thieno[2,3-e][1,2]thiazine-3-carboxylate 1,1-dioxide
Brand: Vaqora Chemicals
SKU: VQ-042430

About Methyl 4-hydroxy-2H-thieno[2,3-e][1,2]thiazine-3-carboxylate 1,1-dioxide

Methyl 4-hydroxy-2H-thieno[2,3-e][1,2]thiazine-3-carboxylate 1,1-dioxide (CAS 98827-44-2) is a metabolite or degradation product of Tenoxicam offered by Vaqora Chemicals. Formula C8H7NO5S2, molecular weight 261.3 g/mol. Systematically, it is named methyl 4-hydroxy-1,1-dioxo-2H-thieno[2,3-e]thiazine-3-carboxylate.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Analytical teams use this compound to identify metabolites and degradants of Tenoxicam, to validate stability-indicating methods (AMV) and to support QC and regulatory filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Methyl 4-hydroxy-2H-thieno[2,3-e][1,2]thiazine-3-carboxylate 1,1-dioxide in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Metabolite identification
Stability-indicating methods
Impurity profiling

Industries

Related to Tenoxicam

View every impurity, metabolite and intermediate we list for Tenoxicam.

Tenoxicam impurities

Specifications & identifiers

Chemical identifiers
Product name	Methyl 4-hydroxy-2H-thieno[2,3-e][1,2]thiazine-3-carboxylate 1,1-dioxide
Catalogue No.	VQ-042430
CAS Number	98827-44-2
IUPAC name	methyl 4-hydroxy-1,1-dioxo-2H-thieno[2,3-e]thiazine-3-carboxylate
Molecular formula	C₈H₇NO₅S₂
Molecular weight	261.3 g/mol
Exact mass	260.9766
Grade	Reference Standard
HSN code	38229090
InChIKey	QHDGDSKIUCBIGS-UHFFFAOYSA-N
SMILES	COC(=O)C1=C(C2=C(C=CS2)S(=O)(=O)N1)O
PubChem CID	54707628

Physical properties
Physical form	Solid
LogP (XLogP3)	0.7
H-bond donors / acceptors	2 / 7
TPSA	129 Å²

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Methyl 4-hydroxy-2H-thieno[2,3-e][1,2]thiazine-3-carboxylate 1,1-dioxide?

The CAS Registry Number of Methyl 4-hydroxy-2H-thieno[2,3-e][1,2]thiazine-3-carboxylate 1,1-dioxide is 98827-44-2. It is also known as methyl 4-hydroxy-1,1-dioxo-2H-thiopheno[2,3-e]1,2-thiazine-3-carboxylate, (4-hydroxy-3-methoxycarbonyl-2H- thieno(2,3,e)-1,2-thiazine-1,1-dioxide), Methyl 4-hydroxy-1,1-dioxo-1,2-dihydro-1lambda~6~-thieno[2,3-e][1,2]thiazine-3-carboxylate.

What is the molecular formula and molecular weight of Methyl 4-hydroxy-2H-thieno[2,3-e][1,2]thiazine-3-carboxylate 1,1-dioxide?

Methyl 4-hydroxy-2H-thieno[2,3-e][1,2]thiazine-3-carboxylate 1,1-dioxide has the molecular formula C8H7NO5S2 and a molecular weight of 261.3 g/mol. Its IUPAC name is methyl 4-hydroxy-1,1-dioxo-2H-thieno[2,3-e]thiazine-3-carboxylate.

What is Methyl 4-hydroxy-2H-thieno[2,3-e][1,2]thiazine-3-carboxylate 1,1-dioxide used for?

Methyl 4-hydroxy-2H-thieno[2,3-e][1,2]thiazine-3-carboxylate 1,1-dioxide is supplied as a characterised reference material related to Tenoxicam. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Methyl 4-hydroxy-2H-thieno[2,3-e][1,2]thiazine-3-carboxylate 1,1-dioxide can I order?

We supply Methyl 4-hydroxy-2H-thieno[2,3-e][1,2]thiazine-3-carboxylate 1,1-dioxide in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Methyl 4-hydroxy-2H-thieno[2,3-e][1,2]thiazine-3-carboxylate 1,1-dioxide?

Yes. Every lot of Methyl 4-hydroxy-2H-thieno[2,3-e][1,2]thiazine-3-carboxylate 1,1-dioxide is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Methyl 4-hydroxy-2H-thieno[2,3-e][1,2]thiazine-3-carboxylate 1,1-dioxide be shipped internationally?

Yes. Methyl 4-hydroxy-2H-thieno[2,3-e][1,2]thiazine-3-carboxylate 1,1-dioxide is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.