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Prostaglandin B3 (PGB3) is a non-enzymatic dehydration product resulting from the treatment of Prostaglandin E3 (PGE3) with strong base. In a structure-activity binding study to determine the affinity of various prostaglandins to human PPARgamma, PGB3 exhibited a Ki value greater than 1 mM. In contrast, PGB1 and PGB2 showed significantly higher affinity for PPARgamma, with Ki values of 26 and 77 µM, respectively, the same assay.Formal Name: 9-oxo-15S-hydroxy-prosta-5Z,8(12),13E,17Z-tetraen-1-oic acid. CAS Number: 36614-32-1. Synonyms: PGB3. Molecular Formula: C20H28O4. Formula Weight: 332.4. Purity: >97%. Formulation: (Request formulation change), A solution in methyl acetate. Solubility: DMF: >75 mg/ml (from PGB2), DMSO: >50 mg/ml (from PGB2), Ethanol: >100 mg/ml (from PGB2), PBS pH 7.2: >2 mg/ml (from PGB2). lambdamax: 280 nm. SMILES: O=C1C(C/C=C\CCCC(O)=O)=C(/C=C/[C@@H](O)C/C=C\CC)CC1. InChi Code: InChI=1S/C20H28O4/c1-2-3-6-9-17(21)14-12-16-13-15-19(22)18(16)10-7-4-5-8-11-20(23)24/h3-4,6-7,12,14,17,21H,2,5,8-11,13,15H2,1H3,(H,23,24)/b6-3-,7-4-,14-12+/t17-/m0/s1. InChi Key: DQRGQQAJYRBDRP-UNBCGXALSA-N.
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