Oxaprozin

Name: Oxaprozin
Brand: Jinan Shenghe Chemical Co., Ltd.

CAS 21256-18-8C18H15NO3MW 293.3

Oxaprozin (CAS No. 21256-18-8) is supplied by Jinan Shenghe Chemical Co., Ltd. with a typical purity of 按批次COA提供(不公开发布). Main applications include Pharmaceutical Intermediates & APIs. Bulk quantities are available with COA; purity and packaging are subject to batch COA and order confirmation.

Specifications

CAS Number21256-18-8

Molecular FormulaC18H15NO3

Molecular Weight293.3

Melting Point158-159 °C

LogP4.19

Purity按批次COA提供(不公开发布)

Packaging按订单/批次确认(不公开发布)

ApplicationsPharmaceutical Intermediates & APIs

CategoryPharmaceutical Intermediates & APIs

Where it is used

Pharmaceutical Intermediates & APIs

Packaging & Supply

Packaging按订单/批次确认(不公开发布)

Purity按批次COA提供(不公开发布)

StorageSealed, cool and dry place

Lead TimeIn stock / per order

Documents & Support

COA provided with every batch; MSDS and technical documents available on request. Email us with product name and CAS number for a quote within one business day.

Frequently Asked Questions

What is the CAS number of Oxaprozin?

The CAS number of Oxaprozin is 21256-18-8.

What purity and packaging are available?

Typical purity is 按批次COA提供(不公开发布), supplied in 按订单/批次确认(不公开发布), with COA provided.

What are the applications of Oxaprozin?

Main applications include Pharmaceutical Intermediates & APIs.

How do I buy Oxaprozin or get a quote?

Email info@591daili.com or reach us on WhatsApp with the product name, CAS number and required quantity; quotes within one business day. Supplier: Jinan Shenghe Chemical Co., Ltd..

PubChem Public Data

Description

Oxaprozin · CAS 21256-18-8 · C18H15NO3. UNII MHJ80W9LRB. Melting Point: 158-159 °C; Melting Point: 160.5 to 161.5 °C; Melting Point: 158 - 159 °C.

Identification

CAS Registry Number	21256-18-8
PubChem CID	4614
Molecular formula	C18H15NO3
IUPAC name	3-(4,5-diphenyl-1,3-oxazol-2-yl)propanoic acid
UNII (FDA)	MHJ80W9LRB

Computed Descriptors

Molecular Weight	293.3
XLogP3	4.2
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	5
Exact Mass	293.10519334
Monoisotopic Mass	293.10519334
Topological Polar Surface Area	63.3
Heavy Atom Count	22
Formal Charge	0

Physical & Chemical Properties

Melting Point	158-159 °C
Melting Point	160.5 to 161.5 °C
Melting Point	158 - 159 °C
Solubility	3.25e-02 g/L
LogP	4.19
LogP	log Kow = 4.19
LogP	3.7
LogP	2.82
Dissociation Constants	4.3
Dissociation Constants	pKa = 4.3

Physical description & handling notes

Solid
Crystals from methanol
Insoluble
Slightly soluble in alcohol. Insoluble in water
When heated to decomposition it emits toxic fumes of /Nitrogen oxide/.
169.7 Å² [M+H]+ [CCS Type: TW; Method: calibrated with polyalanine and drug standards]

GHS Hazard Classification

Reported hazard statements	H302 (25%), H315 (25%), H319 (25%), H411 (25%), H412 (25%), H413 (25%)

H302 (25%): Harmful if swallowed [Warning Acute toxicity, oral]

H315 (25%): Causes skin irritation [Warning Skin corrosion/irritation]

Documented Uses

Therapeutic Category: Anti-inflammatory
Consumption (g per capita) in the USA (2002): 0.067
Preparation: FR 2001036 (1969 Inst Farm Serano); ... K. Brown GB 1206403 and US 3578671 (1970, 1971 to Wyeth)
Used to relieve the inflammation, swelling, stiffness, and joint pain associated with rheumatoid arthritis and osteoarthritis.
Oxaprozin is a long acting nonsteroidal antiinflammatory drug (NSAID) available by prescription only which is used for therapy of chronic arthritis. Oxaprozin has been linked to rare instances of idiosyncratic drug induced liver disease.
Breast Feeding; Lactation; Milk, Human; Analgesic Agents; Anti-inflammatory Agents, Nonsteroidal

Synonyms

oxaprozin; 21256-18-8; Daypro; 3-(4,5-Diphenyloxazol-2-yl)propanoic acid; Alvo; Oxaprozine; Oxaprozinum; Deflam; Oxaprozina; 4,5-Diphenyl-2-oxazolepropanoic acid; 4,5-Diphenyl-2-oxazolepropionic acid; WY-21743; WY-21,743; 2-Oxazolepropanoic acid, 4,5-diphenyl-; Duraprox; DTXSID1045118

Frequently Asked Questions

What are the CAS number and molecular formula of Oxaprozin?

CAS 21256-18-8; molecular formula C18H15NO3; molecular weight — g/mol.

What other names is Oxaprozin known by?

oxaprozin, 21256-18-8, Daypro, 3-(4,5-Diphenyloxazol-2-yl)propanoic acid, Alvo, Oxaprozine.

Is Oxaprozin classified as hazardous?

Hazard statements reported: H302, H315, H319, H411, H412.

What are the key physical properties of Oxaprozin?

Melting Point: 158-159 °C; Melting Point: 160.5 to 161.5 °C; Melting Point: 158 - 159 °C; Solubility: 3.25e-02 g/L.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.

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