(±)-Flurbiprofen, 5 g

STEMCELL Technologies offers (±)-Flurbiprofen, a cell-permeable, non-steroidal anti-inflammatory agent provided as a crystalline solid. The substance is 2-(3-fluoro-4-phenylphenyl)propanoic acid, also known by the synonym Ansaid (CAS 5104-49-4), with molecular formula C₁₅H₁₃FO₂, molecular weight 244.3 g/mol, and a stated purity of ≥ 99%.

The compound inhibits COX-1 and COX-2 and has been investigated as a reproductive effector. Published applications include maintaining self-renewal and pluripotency in human embryonic stem cells cultured under differentiation-inducing conditions, and inhibiting tumor growth in models of prostate cancer, familial adenomatous polyposis, and brain cancer.

Storage guidance from the supplier is 15 - 25 °C, protected from prolonged exposure to light, with long-term storage over a desiccant; the material is reported stable as supplied for 12 months from date of receipt. Solubility is given as ~100 mg/mL in EtOH, DMF, and DMSO, with stock concentrations up to 400 mM in DMSO and absolute ethanol. The product is classified for Acute Toxicity, Oral, Category 3 and Reproductive Toxicity, Category 2; the reported oral LD50 in rat is 117 mg/kg. A California Proposition 65 warning notes reproductive toxicity. Incompatible materials include strong oxidizing agents.