Chemical Name: (3bS,3cR,4S,5aS,6R,7S,8aS,8bS)-3c-Fluoro-4,6-dihydroxy-6-(2-hydroxyacetyl)-3b,5a,7-trimethyl-3b,3c,4,5,5a,6,7,8,8a,8b,9,10-dodecahydrocyclopenta[2,3]cyclopropa[1,2-a]cyclopenta[f]naphthalen-3(3aH)-one
Smiles: F[C@@]1([C@]2(C34)C)[C@](CCC24C=CC3=O)([H])[C@@](C[C@H](C)[C@]5(O)C(CO)=O)([H])[C@]5(C)C[C@@H]1O
Inchi: InChI=1S/C22H27FO5/c1-11-8-14-13-6-4-12-5-7-15(25)18-20(12,3)21(13,23)17(28-18)9-19(14,2)22(11,27)16(26)10-24/h5,9,11,13-14,18,24,27H,4,6-8,10H2,1-3H3/t11-,13-,14-,18+,19-,20+,21-,22-/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