Chemical Name: (11β,16α)-9-Fluoro-11,21-dihydroxy-16-methyl-17-(1-oxopropoxy)-pregna-1,4-diene-3,20-dione; 9-Fluoro-11β,17,21-trihydroxy-16α-methyl-pregna-1,4-diene-3,20-dione 17-Propionate
Smiles: O=C(CC)O[C@@]([C@]([C@@]1([H])C2)(C[C@H](O)[C@](F)([C@]3(C=C4)C)[C@@]1([H])CCC3=CC4=O)C)([C@@H]2C)C(CO)=O
Inchi: InChI=1S/C22H29FO5/c1-11-8-15-14-5-4-12-9-13(24)6-7-21(12,3)22(14,23)16(25)10-20(15,2)17(11)18(26)19(27)28/h6-7,9,11,14-18,25-26H,4-5,8,10H2,1-3H3,(H,27,28)/t11-,14-,15-,16-,17?,18?,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