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1482207

USP

Oxaprozin

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

4,5-Diphenyl-2-oxazolepropanoic acid, Daypro

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200 mg

Estimated to ship onJune 09, 2026fromMILWAUKEE

$400.00

About This Item

Empirical Formula (Hill Notation):
C18H15NO3
CAS Number:
21256-18-8
Molecular Weight:
293.32
NACRES:
NA.24
PubChem Substance ID:
329750632
UNSPSC Code:
41116107
MDL number:
MFCD00215977

$400.00

Estimated to ship onJune 09, 2026Details

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grade

pharmaceutical primary standard

agency

USP

API family

oxaprozin

manufacturer/tradename

USP

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

OC(=O)CCc1nc(-c2ccccc2)c(o1)-c3ccccc3

InChI

1S/C18H15NO3/c20-16(21)12-11-15-19-17(13-7-3-1-4-8-13)18(22-15)14-9-5-2-6-10-14/h1-10H,11-12H2,(H,20,21)

InChI key

OFPXSFXSNFPTHF-UHFFFAOYSA-N

Gene Information

human ... PTGS1(5742), PTGS2(5743)

General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Oxaprozin USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:
  • Oxaprozin Tablets

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

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grade

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grade

pharmaceutical primary standard

grade

pharmaceutical primary standard

grade

pharmaceutical primary standard

manufacturer/tradename

USP

manufacturer/tradename

USP

manufacturer/tradename

USP

manufacturer/tradename

USP

application(s)

pharmaceutical (small molecule)

application(s)

pharmaceutical (small molecule)

application(s)

pharmaceutical (small molecule)

application(s)

pharmaceutical (small molecule)

format

neat

format

neat

format

neat

format

neat

Gene Information

human ... PTGS1(5742), PTGS2(5743)

Gene Information

human ... PTGS1(5742), PTGS2(5743)

Gene Information

human ... PTGS1(5742), PTGS2(5743)

Gene Information

human ... PTGS1(5742), PTGS2(5743)

API family

oxaprozin

API family

indomethacin

API family

naproxen

API family

ketoprofen

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Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

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Franco Dallegri et al.
Expert opinion on pharmacotherapy, 6(5), 777-785 (2005-06-07)
Oxaprozin is a nonsteroidal anti-inflammatory drug characterised by a propionic acid-based structure. It is able to diffuse easily into inflamed synovial tissues after oral administration. Although discovered > 20 years ago, it is now under intensive investigation because of its
N M Davies
Clinical pharmacokinetics, 35(6), 425-436 (1999-01-13)
Oxaprozin is a nonsteroidal anti-inflammatory drug which reaches peak plasma concentrations 2 to 6 hours after oral administration. Oxaprozin binds extensively, in a concentration-dependent manner, to plasma albumin. The area under the plasma concentration-time curve (AUC) of oxaprozin is linearly
L G Miller
Clinical pharmacy, 11(7), 591-603 (1992-07-01)
The pharmacology, pharmacokinetics, clinical efficacy, adverse effects, and dosage of oxaprozin are reviewed. Oxaprozin, a nonsteroidal anti-inflammatory drug (NSAID) under consideration for approval by the Food and Drug Administration, is characterized as a propionic acid. By inhibiting cyclo-oxygenase, oxaprozin decreases
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Global Trade Item Number

SKUGTIN
1482207-200MG04061833860571

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