Fluocortin butyl

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Fluocortin butyl
Fluocortin butyl.svg
Clinical data
Trade namesLenen, Novoderm, Varlane, Vaspit
Other namesFCB; SHK-203; Fluocortin 21-butylate; Fluocortin butylate; Fluocortolone-21-carboxylate 21-butyl; 6α-Fluoro-11β-hydroxy-16α-methyl-3,20-dioxopregna-1,4-dien-21-oic acid butyl ester
Drug classCorticosteroid; Glucocorticoid
  • Butyl 2-[(6S,8S,9S,10R,11S,13S,14S,16R,17S)-6-fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-17-yl]-2-oxoacetate
CAS Number
PubChem CID
CompTox Dashboard (EPA)
ECHA InfoCard100.050.476 Edit this at Wikidata
Chemical and physical data
Molar mass446.559 g·mol−1
3D model (JSmol)
  • CCCCOC(=O)C(=O)[C@H]1[C@@H](C[C@@H]2[C@@]1(C[C@@H]([C@H]3[C@H]2C[C@@H](C4=CC(=O)C=C[C@]34C)F)O)C)C
  • InChI=1S/C26H35FO5/c1-5-6-9-32-24(31)23(30)21-14(2)10-17-16-12-19(27)18-11-15(28)7-8-25(18,3)22(16)20(29)13-26(17,21)4/h7-8,11,14,16-17,19-22,29H,5-6,9-10,12-13H2,1-4H3/t14-,16+,17+,19+,20+,21-,22-,25+,26+/m1/s1

Fluocortin butyl (brand names Lenen, Novoderm, Varlane, Vaspit), or fluocortin 21-butylate, is a synthetic glucocorticoid corticosteroid which is marketed in Germany, Belgium, Luxembourg, Spain, and Italy.[1][2] Chemically, it is the butyl ester derivative of fluocortin.[1][2]

It was patented in 1971 and approved for medical use in 1977.[3]


  1. ^ a b Elks J (14 November 2014). The Dictionary of Drugs: Chemical Data: Chemical Data, Structures and Bibliographies. Springer. pp. 563–. ISBN 978-1-4757-2085-3.
  2. ^ a b Index Nominum 2000: International Drug Directory. Taylor & Francis. 2000. pp. 457–. ISBN 978-3-88763-075-1.
  3. ^ Fischer J, Ganellin CR (2006). Analogue-based Drug Discovery. John Wiley & Sons. p. 487. ISBN 9783527607495.