4847 17-Hydroxyprogesterone caproate 17α-Hydroxyprogesterone caproate is a synthetic steroid hormone that is similar to medroxyprogesterone acetate and megestrol acetate. It is an ester derivative of 17α-hydroxyprogesterone formed from caproic acid (hexanoic acid). 17α-Hydroxyprogesterone caproate was previously marketed under the trade name Delalutin by Squibb, which was approved by the U.S. Food and Drug Administration (FDA) in 1956 and withdrawn from marketing in 1999. Cytyc is seeking FDA approval to market 17α-hydroxyprogesterone caproate under the trade name Gestiva for prevention of preterm delivery in women with a history of preterm delivery. [Wikipedia] 630-56-8 169870 C27H40O4 White powder. 119-121°C 2B, possibly carcinogenic to humans. (L135) 2014-09-11T05:16:53Z 2026-04-14T16:24:19Z 17-Hydroxyprogesterone_caproate DB06789 true [H][C@@]12CC[C@](OC(=O)CCCCC)(C(C)=O)[C@@]1(C)CC[C@@]1([H])[C@@]2([H])CCC2=CC(=O)CC[C@]12C C27H40O4 InChI=1S/C27H40O4/c1-5-6-7-8-24(30)31-27(18(2)28)16-13-23-21-10-9-19-17-20(29)11-14-25(19,3)22(21)12-15-26(23,27)4/h17,21-23H,5-16H2,1-4H3/t21-,22+,23+,25+,26+,27+/m1/s1 DOMWKUIIPQCAJU-LJHIYBGHSA-N 428.6041 428.292659768 Exogenous Solid CHEM003749 DTXSID6043915 (1S,2R,10R,11S,14R,15S)-14-acetyl-2,15-dimethyl-5-oxotetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-6-en-14-yl hexanoate