Estrone cyanate

Estrone cyanate, or estrone 3-O-cyanate, also known as estrocyanate, is an estrogen and an estrogen ester – specifically, the 3-O-cyanate ester of estrone – which was investigated for potential use in birth control pills but was found to be of relatively low potency and ultimately was never marketed.^[1][2][3][4]

Estrone cyanate

Clinical data
Other names	Estrocyanate; Estrone 3-O-cyanate; Estrone 3-cyanate
Routes of administration	By mouth
Identifiers
IUPAC name 17-Oxoestra-1(10),2,4-trien-3-yl cyanate
CAS Number	23623-36-1 Y
ChemSpider	26377079
UNII	YV53AV45DS
Chemical and physical data
Formula	C19H21NO2
Molar mass	295.382 g·mol−1
3D model (JSmol)	Interactive image
SMILES C[C@]12CC[C@@H]3c4ccc(cc4CC[C@H]3[C@@H]1CCC2=O)OC#N
InChI InChI=1S/C19H21NO2/c1-19-9-8-15-14-5-3-13(22-11-20)10-12(14)2-4-16(15)17(19)6-7-18(19)21/h3,5,10,15-17H,2,4,6-9H2,1H3/t15-,16-,17+,19+/m1/s1 Key:OIOQBNDENVAFEU-VXNCWWDNSA-N