Chemical Name: (8S,9R,10S,11S,13S,14S,16S,17R)-9-Fluoro-11,17-dihydroxy-17-(2-hydroxyacetyl)-10,13,16-trimethyl-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one
Smiles: C[C@@]12C(CC[C@]3([H])[C@]2(F)[C@@H](O)C[C@@]4(C)[C@@]3([H])C[C@H](C)[C@@]4(C(CO)=O)O)=CC(CC1)=O
Inchi: InChI=1S/C37H65NO14/c1-13-25-37(10,46)30(42)20(4)27(40)18(2)15-35(8,45)32(52-34-28(41)24(38(11)17-39)14-19(3)48-34)21(5)29(22(6)33(44)50-25)51-26-16-36(9,47-12)31(43)23(7)49-26/h17-26,28-32,34,41-43,45-46H,13-16H2,1-12H3/t18-,19-,20+,21+,22-,23+,24+,25-,26+,28-,29+,30-,31+,32-,34+,35-,36-,37-/m1/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