Chemical Name: (1β,10α,11β,16β)-9-Fluoro-11-hydroxy-16-methyl-17,21-bis(1-oxopropoxy)-1,5-Cyclopregn-3-ene-2,20-dione
Smiles: C[C@]1([C@]23F)C(CC[C@@]2([H])[C@@](C[C@H](C)[C@]4(OC(CC)=O)C(COC(CC)=O)=O)([H])[C@]4(C)C[C@@H]3O)(C=C5)C1C5=O
Inchi: InChI=1S/C25H33FO6/c1-5-21(31)32-25(20(30)13-27)14(2)10-18-17-7-6-15-11-16(28)8-9-22(15,3)24(17,26)19(29)12-23(18,25)4/h8-9,11,14,17-19,27,29H,5-7,10,12-13H2,1-4H3/t14-,17+,18+,19+,22+,23+,24+,25+/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