Chemical Name: (3S,4aS,4bS,10aS,10bR,11S,12aS)-10b-Fluoro-1,11-dihydroxy-3,10a,12a-trimethyl-1,3,4,4a,4b,5,6,10a,10b,11,12,12a-dodecahydrochrysene-2,8-dione
Smiles: F[C@@]1([C@]2(C=C3)C)[C@](CCC2=CC3=O)([H])[C@]([H])(C[C@H](C)C(C4O)=O)[C@]4(C)C[C@@H]1O
Inchi: InChI=1S/C21H27FO4/c1-12-8-16-15-5-4-13-9-14(24)6-7-18(13,2)21(15,22)17(25)10-19(16,3)20(12,26)11-23/h6-7,9,11-12,15-17,25-26H,4-5,8,10H2,1-3H3/t12-,15-,16-,17-,18-,19-,20+,21-/m0/s1
Application of LC–MSn in conjunction with mechanism-based stress studies in the elucidation of drug impurity structure: Rapid identification of a process impurity in betamethasone 17-valerate drug substance
Min Li, Mingxiang Lin, Abu Rustum
Journal of Pharmaceutical and Biomedical Analysis 48 (2008) 1451–1456
Development and Validation of Stability-indicating HPLC Method for Betamethoasone Dipropionate and Related Substances in Topical Formulation
A. s. vairale*, p. sivaswaroop1 and s. bandana
Indian Journal of Pharmaceutical Sciences 74(2):107-15