Benoxaprofen

Name: Benoxaprofen
Brand: Vaqora Chemicals
SKU: VQ-035933

About Benoxaprofen

Benoxaprofen (CAS 51234-28-7) is a stable isotope labelled analogue related to Benoxaprofen offered by Vaqora Chemicals. The compound has the formula C16H12ClNO3, corresponding to a molecular weight of 301.72 g/mol. Its systematic (IUPAC) name is 2-[2-(4-chlorophenyl)-1,3-benzoxazol-5-yl]propanoic acid. Common synonyms include dl-Benoxaprofen and Benoxaprofene.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Its mass shift relative to the unlabelled analyte makes it a dependable internal standard for LC-MS/MS assays, improving accuracy in bioanalysis, therapeutic drug monitoring and method validation. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

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

Typical applications

LC-MS/MS internal standard
Bioanalytical quantitation
Pharmacokinetic studies

Industries

Related to Benoxaprofen

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

Benoxaprofen impurities

Specifications & identifiers

Chemical identifiers
Product name	Benoxaprofen
Catalogue No.	VQ-035933
CAS Number	51234-28-7
IUPAC name	2-[2-(4-chlorophenyl)-1,3-benzoxazol-5-yl]propanoic acid
Molecular formula	C₁₆H₁₂ClNO₃
Molecular weight	301.72 g/mol
Exact mass	301.0506
Grade	Reference Standard
HSN code	38229090
InChIKey	MITFXPHMIHQXPI-UHFFFAOYSA-N
SMILES	CC(C1=CC2=C(C=C1)OC(=N2)C3=CC=C(C=C3)Cl)C(=O)O
PubChem CID	39941

Physical properties
Physical form	Solid
LogP (XLogP3)	4.1
H-bond donors / acceptors	1 / 4
TPSA	63.3 Å²
Synonyms	dl-Benoxaprofen, Benoxaprofene, Compound 90459, Lilly 90459, 2-(4-Chlorophenyl)-alpha-methyl-5-benzoxazoleacetic acid, (1)-2-(4-Chlorophenyl)benzoxazole-5-propionic acid, 2-(p-Chlorophenyl)-alpha-methyl-5-benzoxazoleacetic acid, 2-(2-(4-Chlorophenyl)-1,3-benzoxazol-5-yl)propanoic acid, 2-(2-(4-chlorophenyl)benzo[d]oxazol-5-yl)propanoic acid, LRCL 3794, 5-Benzoxazoleacetic acid, 2-(4-chlorophenyl)-.alpha.-methyl-

Safety & hazard information (GHS)

Toxic

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H413May cause long lasting harmful effects to aquatic life

Precautionary statements: P264, P270, P273, P301 + P316, P321, P330, 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 Benoxaprofen?

The CAS Registry Number of Benoxaprofen is 51234-28-7. It is also known as dl-Benoxaprofen, Benoxaprofene, Compound 90459.

What is the molecular formula and molecular weight of Benoxaprofen?

Benoxaprofen has the molecular formula C16H12ClNO3 and a molecular weight of 301.72 g/mol. Its IUPAC name is 2-[2-(4-chlorophenyl)-1,3-benzoxazol-5-yl]propanoic acid.

What is Benoxaprofen used for?

Benoxaprofen is supplied as a characterised reference material related to Benoxaprofen. 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 Benoxaprofen can I order?

We supply Benoxaprofen 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 Benoxaprofen?

Yes. Every lot of Benoxaprofen 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 Benoxaprofen be shipped internationally?

Yes. Benoxaprofen 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.