Halobetasol

Formula :
CAS : 98651-66-2 

Used in ointment to treat psoriasis; Ulobetasol cream contains 0.05% 6-fluoroclobetasol 17-propionate.

Halobetasol propionate

Formula : C25-H31-Cl-F2-O5
CAS : 66852-54-8 

Used in ointment to treat psoriasis; Ulobetasol cream contains 0.05% 6-fluoroclobetasol 17-propionate