Piroxicam EP Impurity I

Name: Piroxicam EP Impurity I
Brand: Vaqora Chemicals
SKU: VQ-023511

About Piroxicam EP Impurity I

Listed under CAS 76508-35-5, Piroxicam EP Impurity I is a pharmacopeial impurity of Piroxicam available from Vaqora Chemicals. Its molecular formula is C12H13NO5S and its molecular weight is 283.3 g/mol. The IUPAC name is propan-2-yl 4-hydroxy-1,1-dioxo-2H-1lambda6,2-benzothiazine-3-carboxylate. It is also known as Piroxicam - Impurity I or Piroxicam Impurity I.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Pharmaceutical QC and development laboratories use this impurity standard of Piroxicam to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

We offer Piroxicam EP Impurity I in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

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

Industries

Related to Piroxicam

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

Piroxicam impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Piroxicam EP Impurity I
Catalogue No.	VQ-023511
CAS Number	76508-35-5
IUPAC name	propan-2-yl 4-hydroxy-1,1-dioxo-2H-1lambda6,2-benzothiazine-3-carboxylate
Molecular formula	C₁₂H₁₃NO₅S
Molecular weight	283.3 g/mol
Exact mass	283.0514
Grade	Reference Standard
HSN code	38229090
InChIKey	KCSORUCCHDBUFQ-UHFFFAOYSA-N
SMILES	CC(C)OC(=O)C1=C(C2=CC=CC=C2S(=O)(=O)N1)O
PubChem CID	54687027

Physical properties
Physical form	Solid
LogP (XLogP3)	1.8
H-bond donors / acceptors	2 / 6
TPSA	101 Å²
Synonyms	Piroxicam - Impurity I, 1-Methylethyl 4-Hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide, 2H-1,2-Benzothiazine-3-carboxylic acid, 4-hydroxy-, 1-methylethyl ester, 1,1-dioxide, Piroxicam Impurity I, Isopropyl 4-hydroxy-2H-benzo[e][1,2]thiazine-3-carboxylate 1,1-dioxide, Isopropyl 4-Hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide (Piroxicam Impurity I), (Piroxicam Impurity I), isopropyl 4-hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide, Isopropyl 4-Hydroxy-, 4-Hydroxy-2H-1,2-benzothiazine-3-carboxylic Acid 1-Methylethyl Ester 1,1-Dioxide, Isopropyl 4-Hydroxy-_x000D_, 1-Methylethyl 4-Hydroxy-2H-1,2-benz

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements: P264, P270, P301 + P317, P330, 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 Piroxicam EP Impurity I?

The CAS Registry Number of Piroxicam EP Impurity I is 76508-35-5. It is also known as Piroxicam - Impurity I, 1-Methylethyl 4-Hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide, 2H-1,2-Benzothiazine-3-carboxylic acid, 4-hydroxy-, 1-methylethyl ester, 1,1-dioxide.

What is the molecular formula and molecular weight of Piroxicam EP Impurity I?

Piroxicam EP Impurity I has the molecular formula C12H13NO5S and a molecular weight of 283.3 g/mol. Its IUPAC name is propan-2-yl 4-hydroxy-1,1-dioxo-2H-1lambda6,2-benzothiazine-3-carboxylate.

What is Piroxicam EP Impurity I used for?

Piroxicam EP Impurity I is supplied as a characterised reference material related to Piroxicam. 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 Piroxicam EP Impurity I can I order?

We supply Piroxicam EP Impurity I 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 Piroxicam EP Impurity I?

Yes. Every lot of Piroxicam EP Impurity I 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 Piroxicam EP Impurity I be shipped internationally?

Yes. Piroxicam EP Impurity I 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.