Oxaprozin

Name: Oxaprozin
Brand: Vaqora Chemicals
SKU: VQ-032995

About Oxaprozin

Listed under CAS 21256-18-8, Oxaprozin is a high-purity reference standard of Oxaprozin available from Vaqora Chemicals. With the molecular formula C18H15NO3, it has a molar mass of 293.3 g/mol. The IUPAC name is 3-(4,5-diphenyl-1,3-oxazol-2-yl)propanoic acid. Common synonyms include 3-(4,5-Diphenyloxazol-2-yl)propanoic acid and Oxaprozine.

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. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Laboratories use this Oxaprozin standard for identity and assay testing, system suitability checks and method validation supporting ANDA and DMF filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Oxaprozin in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Identification & assay
Method development & validation
QC reference material

Industries

Related to Oxaprozin

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

Oxaprozin impurities

Specifications & identifiers

Chemical identifiers
Product name	Oxaprozin
Catalogue No.	VQ-032995
CAS Number	21256-18-8
IUPAC name	3-(4,5-diphenyl-1,3-oxazol-2-yl)propanoic acid
Molecular formula	C₁₈H₁₅NO₃
Molecular weight	293.3 g/mol
Exact mass	293.1052
Grade	Reference Standard
HSN code	38229090
InChIKey	OFPXSFXSNFPTHF-UHFFFAOYSA-N
SMILES	C1=CC=C(C=C1)C2=C(OC(=N2)CCC(=O)O)C3=CC=CC=C3
PubChem CID	4614

Physical properties
Physical form	Solid
LogP (XLogP3)	4.2
H-bond donors / acceptors	1 / 4
TPSA	63.3 Å²
Synonyms	3-(4,5-Diphenyloxazol-2-yl)propanoic acid, Oxaprozine, 4,5-Diphenyl-2-oxazolepropanoic acid, 4,5-Diphenyl-2-oxazolepropionic acid, 2-Oxazolepropanoic acid, 4,5-diphenyl-, beta-(4,5-Diphenyloxazol-2-yl)propionic acid, 3-(diphenyl-1,3-oxazol-2-yl)propanoic acid, Apo Oxaprozin, Rhoxal oxaprozin, 3-(4,5-Diphenyl-2-oxazolyl)propenoic acid, .beta.-(4,5-Diphenyloxazol-2-yl)propionic acid

Safety & hazard information (GHS)

Harmful / irritant

Environmental hazard

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H411Toxic to aquatic life with long lasting effects
H412Harmful to aquatic life with long lasting effects
H413May cause long lasting harmful effects to aquatic life

Precautionary statements: P264, P264 + P265, P270, P273, P280, P301 + P317, P302 + P352, P305 + P351 + P338, P321, P330, P332 + P317, P337 + P317, P362 + P364, P391, 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 Oxaprozin?

The CAS Registry Number of Oxaprozin is 21256-18-8. It is also known as 3-(4,5-Diphenyloxazol-2-yl)propanoic acid, Oxaprozine, 4,5-Diphenyl-2-oxazolepropanoic acid.

What is the molecular formula and molecular weight of Oxaprozin?

Oxaprozin has the molecular formula C18H15NO3 and a molecular weight of 293.3 g/mol. Its IUPAC name is 3-(4,5-diphenyl-1,3-oxazol-2-yl)propanoic acid.

What is Oxaprozin used for?

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

We supply Oxaprozin 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 Oxaprozin?

Yes. Every lot of Oxaprozin 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 Oxaprozin be shipped internationally?

Yes. Oxaprozin 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.