Ulobetasol

Ulobetasol
Clinical data
Trade names	Ultravate
Other names	(6S,8S,9S,10S,11S,13S,14S,16S,17R)-17-(2-Chloroacetyl)-6,9-difluoro-11,17-dihydroxy-10,13,16-trimethyl-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-3-one, halobetasol (USAN US)
AHFS/Drugs.com	Professional Drug Facts
MedlinePlus	a601060
ATC code	D07AC21 (WHO) ; D05AX55 (WHO) (combination with tazarotene);
Identifiers
	IUPAC name (6α,11β,16β)-21-Chloro-6,9-difluoro-11,17-dihydroxy-16-methylpregna-1,4-diene-3,20-dione;
CAS Number	98651-66-2 ;
PubChem CID	5311167;
ChemSpider	4470691 ;
UNII	9P6159HM7T;
KEGG	D08660 ;
ChEMBL	ChEMBL1201360 ;
CompTox Dashboard (EPA)	DTXSID60243759 ;
Chemical and physical data
Formula	C22H27ClF2O4
Molar mass	428.90 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES ClCC(=O)[C@]3(O)[C@]2(C[C@H](O)[C@]4(F)[C@@]/1(\C(=C/C(=O)\C=C\1)[C@@H](F)C[C@H]4[C@@H]2C[C@@H]3C)C)C;
	InChI 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 ; Key:LEHFPXVYPMWYQD-XHIJKXOTSA-N ;
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Ulobetasol (INN) or halobetasol (USAN) is a corticosteroid used to treat psoriasis. It is a class I corticosteroid under the US classification and a group III corticosteroid under international classification, the most potent group of such drugs.

Ulobetasol propionate is usually supplied as a 0.05% topical cream. Ulobetasol is the strongest topical steroid available. It is also sold with tazarotene with 0.01% halobetasol and 0.045% tazarotene as a lotion branded as Duobrii (Bausch Health).

It is available as a generic medication.