Chemical Name: (8R,9R,10S,14R,16S,17R)-8,9-difluoro-10,13,16-trimethyl-3,11-dioxo-17-(2-(propionyloxy)acetyl)-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl propionate
Smiles: O=C([C@](C([C@@]([C@@](CCC1=CC2=O)(F)[C@]3([C@]1(C=C2)C)F)([H])C4)(CC3=O)C)([C@H]4C)OC(CC)=O)COC(CC)=O
Inchi: InChI=1S/C28H37FO7/c1-6-21(33)35-14-20(32)28(36-22(34)7-2)15(3)12-17-16-8-10-26-11-9-18(30)23(26)25(26,5)27(16,29)19(31)13-24(17,28)4/h9,11,15-17,19,23,31H,6-8,10,12-14H2,1-5H3/t15-,16-,17-,19-,23?,24-,25+,26?,27-,28-/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