Catalog No. Size PriceQuantity
M11347-2 Solid 2 mg $90
M11347-10 Solid 10 mg $270


Timapiprant, also known as OC000459, is a potent, selective and orally active CRTH2 antagonist. OC000459 reduces nasal and ocular symptoms in allergic subjects exposed to grass pollen, a randomised, placebo-controlled, double-blind trial. OC000459 inhibits mast cell-dependent activation of T helper 2 lymphocytes and eosinophils. OC000459 treatment inhibited LAR and post-allergen increase in sputum eosinophils. OC000459 appears to inhibit allergic inflammation in asthma.

Product information

CAS Number: 851723-84-7

Molecular Weight: 348.37

Formula: C21H17FN2O2

Chemical Name: 2-{5-fluoro-2-methyl-3-[(quinolin-2-yl)methyl]-1H-indol-1-yl}acetic acid

Smiles: CC1=C(CC2=CC=C3C=CC=CC3=N2)C2=CC(F)=CC=C2N1CC(O)=O


InChi: InChI=1S/C21H17FN2O2/c1-13-17(11-16-8-6-14-4-2-3-5-19(14)23-16)18-10-15(22)7-9-20(18)24(13)12-21(25)26/h2-10H,11-12H2,1H3,(H,25,26)

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥360 days if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

Products are for research use only. Not for human use.

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