Betamethasone 17-valerate english synonyms: valisone;(11-beta, 16-beta)-l)oxy);17, 21-trihydroxy-16-beta-methylpregna-1, 4-diene-3, 20-dione-9-fluoro-11-bet;17-valerate;betamethasonevalerateester;betnovateat;celestoderm;pregna-1, 4-diene-3, 20-dione, 9-fluoro-11, 21-dihydroxy-16-methyl-17-((1-oxopenty cas no.: 2152-44-5 assay: 98% molecular formula:c27h37fo6 molecular weight:476.58 specifications: usp31 packing:foibagtin appearance: white crystalline powder usage: drugs used in hormone.