Halobetasol propionate

    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 315225

CAS#: 98651-66-2

Description: Ulobetasol (or halobetasol) is a corticosteroid used to treat psoriasis. It is a group I corticosteroid under the US classification, the most potent class of such drugs. Halobetasol propionate is usually supplied as a 0.05% topical cream. (Source: http://en.wikipedia.org/wiki/Halobetasol_propionate)


Chemical Structure

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Halobetasol propionate
CAS# 98651-66-2

Theoretical Analysis

MedKoo Cat#: 315225
Name: Halobetasol propionate
CAS#: 98651-66-2
Chemical Formula: C22H27ClF2O4
Exact Mass: 428.15659
Molecular Weight: 428.9
Elemental Analysis: C, 61.61; H, 6.35; Cl, 8.27; F, 8.86; O, 14.92

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Synonym: Halobetasol; Ulobetasol

IUPAC/Chemical Name: (6α,11β,16β)-21-chloro-6,9-difluoro-11,17-dihydroxy-16-methylpregna-1,4-diene-3,20-dione

InChi Key: LEHFPXVYPMWYQD-XHIJKXOTSA-N

InChi Code: InChI=1S/C22H27ClF2O4/c1-11-6-13-14-8-16(24)15-7-12(26)4-5-19(15,2)21(14,25)17(27)9-20(13,3)22(11,29)18(28)10-23/h4-5,7,11,13-14,16-17,27,29H,6,8-10H2,1-3H3/t11-,13-,14-,16-,17-,19-,20-,21-,22-/m0/s1

SMILES Code: C[C@@]12[C@](C(CCl)=O)(O)[C@@H](C)C[C@@]1([H])[C@]3([H])C[C@H](F)C4=CC(C=C[C@]4(C)[C@@]3(F)[C@@H](O)C2)=O

Appearance: Solid powder

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

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO.

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 428.9 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: Rivera AM, Hsu S. Topical halobetasol propionate in the treatment of plaque psoriasis: a review. Am J Clin Dermatol. 2005;6(5):311-6. Review. PubMed PMID: 16252930.