Clobetasol EP impurity A

SL-10367

Clobetasol EP impurity A, >98%

CAS No. : [5534-13-4]

Synonyms : Betamethasone 17-propionate; Betamethasone 17a-propionate

IUPAC Name : (8S,9R,10S,11S,13S,14S)-9-Fluoro-11-hydroxy-17-(2-hydroxyacetyl)-10,13,16-trimethyl-6,7,8,9,10,11,12,13,14,15-decahydro-3H-cyclopenta[a]phenanthren-3-one

Price And Availability
Pack Size	Price in USD	Add To Shopping Cart	Availability	Shipping Status
5MG	Request A Quote		In Stock	Estimated to ship on 20 September 2026
10MG	Request A Quote		In Stock	Estimated to ship on 20 September 2026
25MG	Request A Quote		In Stock	Estimated to ship on 20 September 2026
50MG	Request A Quote		In Stock	Estimated to ship on 20 September 2026
100MG	Request A Quote		In Stock	Estimated to ship on 20 September 2026

Applications : This is an impurity of Clobetasol 17-propionate, which is a potent, selective CYP3A5 inhibitor (IC50: 0.206 μM) that does not inhibit CYP3A4 or other major CYPs. As a corticosteroid, it is used in research on psoriasis and other skin conditions.

References : Brandi N. et al.: J. Dermatolog. Treat. 30(8), 757-759, 2019.

Storage : Keep container tightly closed under nitrogen or argon and refrigerate for long-term shelf life.

Caution : In case of contact with skin or eyes, rinse immediately with plenty of water and seek medical advice. Wear suitable protective clothing and gloves.