BMS05: Betamethasone EP Impurity E

Betamethasone USP RC E ;

Betamethasone 9,11-Epoxy Impurity ;

9,11β-Epoxy-17,21-dihydroxy-16β-methyl-9β-pregna-1,4-diene-3,20-dione ;

CAS # 981-34-0 ;

C22H28O5 ;

MW: 372.45 ;