17 alpha-propionate

Clascoterone, also known as CB-03-01 and cortexolone 17alpha-propionate, is a topical and peripherally selective and potent androgen antagonist for topical treatment of acne vulgaris. CB-03-01 1% cream seems to fit with the profile of an ideal antiandrogen for topical use. CB-03-01 is clinically more effective than comparator. Acne vulgaris is a disorder of the pilosebaceous unit in which the androgens contribute to its onset and persistence. The use of antiandrogens is therefore potentially effective.

Product information

CAS Number: 19608-29-8

Molecular Weight: 402.52

Formula: C24H34O5

Synonym:

17α-propionate

CB-03-01

Cortexolone 17α-propionate

Chemical Name: (1R,3aS,3bR,9aR,9bS,11aS)-1-(2-hydroxyacetyl)-9a,11a-dimethyl-7-oxo-1H,2H,3H,3aH,3bH,4H,5H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-1-yl propanoate

Smiles: CCC(=O)O[C@@]1(CC[C@H]2[C@@H]3CCC4=CC(=O)CC[C@]4(C)[C@H]3CC[C@]12C)C(=O)CO

InChiKey: GPNHMOZDMYNCPO-PDUMRIMRSA-N

InChi: InChI=1S/C24H34O5/c1-4-21(28)29-24(20(27)14-25)12-9-19-17-6-5-15-13-16(26)7-10-22(15,2)18(17)8-11-23(19,24)3/h13,17-19,25H,4-12,14H2,1-3H3/t17-,18+,19+,22+,23+,24+/m1/s1

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: DMSO : ≥ 100 mg/mL (248.43 mM)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 ^oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 ^oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vivo:

Clascoterone is a new potent topical antiandrogen potentially useful in acne vulgaris. Clascoterone 1% cream was very well tolerated, and was significantly better than placebo regarding TLC (P = 0·0017), ILC (P = 0·0134) and ASI (P = 0·0090), and also clinically more effective than comparator. The product also induced a faster attainment of 50% improvement in all the above parameters.

References:

1. Trifu V, et al. Cortexolone 17α-propionate 1% cream, a new potent antiandrogen for topical treatment of acne vulgaris. A pilot randomized, double-blind comparative study vs. placebo and tretinoin 0·05% cream. Br J Dermatol. 2011 Jul;165(1):177-83.
2. Celasco G, et al. Biological profile of cortexolone 17alpha-propionate (CB-03-01), a new topical and peripherally selective androgen antagonist. Arzneimittelforschung. 2004;54(12):881-6.

Products are for research use only. Not for human use.