Tenoxicam EP Impurity B

Name: Tenoxicam EP Impurity B
Brand: Vaqora Chemicals
SKU: VQ-006717

About Tenoxicam EP Impurity B

Tenoxicam EP Impurity B is a pharmacopeial impurity of Tenoxicam carrying the CAS registry number 59804-25-0. The compound has the formula C9H9NO5S2, corresponding to a molecular weight of 275.3 g/mol. Systematically, it is named methyl 4-hydroxy-2-methyl-1,1-dioxothieno[2,3-e]thiazine-3-carboxylate. Alternative names: Tenoxicam Impurity B and Lornoxicam Impurity 19.

The product is provided as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. It carries the GHS signal word “Warning” with 5 hazard statements. Review the Safety Data Sheet before use.

As a characterised impurity of Tenoxicam, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide. This item is currently in stock for prompt dispatch.

Typical applications

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Industries

Related to Tenoxicam

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

Tenoxicam impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Tenoxicam EP Impurity B
Catalogue No.	VQ-006717
CAS Number	59804-25-0
IUPAC name	methyl 4-hydroxy-2-methyl-1,1-dioxothieno[2,3-e]thiazine-3-carboxylate
Molecular formula	C₉H₉NO₅S₂
Molecular weight	275.3 g/mol
Exact mass	274.9922
Grade	Reference Standard
HSN code	38229090
InChIKey	OKNMAOBDSCJUDO-UHFFFAOYSA-N
SMILES	CN1C(=C(C2=C(S1(=O)=O)C=CS2)O)C(=O)OC
PubChem CID	54690599

Physical properties
Physical form	Solid
LogP (XLogP3)	0.9
H-bond donors / acceptors	1 / 7
TPSA	121 Å²
Synonyms	Methyl 2-Methyl-4-Hydroxy-2H-Thieno[2,3-e]-1,2-thiazine-3-carboxylate-1,1-Dioxide, methyl 4-hydroxy-2-methyl-2H-thieno[2,3-e][1,2]thiazine-3-carboxylate 1,1-dioxide, Tenoxicam Impurity B, Methyl-2-methyl-4-hydroxy-2H-thieno[2,3-E]-1,2-thiazine-3-carboxylate-1,1-dioxide, Methyl 4-hydroxy-2-methyl-1,1-dioxo-thieno[2,3-e]thiazine-3-carboxylate, methyl 4-hydroxy-2-methyl-1,1-dioxo-2H-1lambda6-thieno[2,3-e][1,2]thiazine-3-carboxylate, Methyl 4-Hydroxy-2-methyl-2H-thieno[2,3-e]1,2-thiazine-3-carboxylate 1,1-Dioxide, Lornoxicam Impurity 19, Methyl 4-hydroxy-2-methyl-1,1-dioxo-thieno[2,3-e]thiazine-3-ca, 3-carbomethoxy-4-hydroxy-2-methyl-thieno[2,3-e]-1,2-thiazine 1,1-dioxide, 3-carbomethoxy-4-hydroxy-2-methyl-2H-thieno[2,3-e]-1,2-thiazine 1,1-dioxide, 3-carbomethoxy-4-hydroxy-2-methyl-2H-thieno[2,3-e]-1,2-thiazine1,1-dioxide

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 Tenoxicam EP Impurity B?

The CAS Registry Number of Tenoxicam EP Impurity B is 59804-25-0. It is also known as Methyl 2-Methyl-4-Hydroxy-2H-Thieno[2,3-e]-1,2-thiazine-3-carboxylate-1,1-Dioxide, methyl 4-hydroxy-2-methyl-2H-thieno[2,3-e][1,2]thiazine-3-carboxylate 1,1-dioxide, Tenoxicam Impurity B.

What is the molecular formula and molecular weight of Tenoxicam EP Impurity B?

Tenoxicam EP Impurity B has the molecular formula C9H9NO5S2 and a molecular weight of 275.3 g/mol. Its IUPAC name is methyl 4-hydroxy-2-methyl-1,1-dioxothieno[2,3-e]thiazine-3-carboxylate.

What is Tenoxicam EP Impurity B used for?

Tenoxicam EP Impurity B 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 Tenoxicam EP Impurity B can I order?

We supply Tenoxicam EP Impurity B in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg, 250 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Tenoxicam EP Impurity B?

Yes. Every lot of Tenoxicam EP Impurity B 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 Tenoxicam EP Impurity B be shipped internationally?

Yes. Tenoxicam EP Impurity B 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.