Title: 8-Isoestrone
CAS Registry Number: 517-06-6
CAS Name: (8a)-3-Hydroxyestra-1,3,5(10)-trien-17-one
Additional Names: D1,3,5-8-epiestratrien-3-ol-17-one; 8a-estrone; 8-epiestrone
Molecular Formula: C18H22O2
Molecular Weight: 270.37
Percent Composition: C 79.96%, H 8.20%, O 11.84%
Literature References: Prepn: Serini, Logemann, Ber. 71, 186 (1938); Johnson et al., J. Am. Chem. Soc. 80, 661 (1958); Ananchenko, Torgov, Tetrahedron Lett. 1963, 1553.
Derivative Type: dl-Form
Properties: Prisms from methanol, mp 254-255°.
Melting point: mp 254-255°
Derivative Type: dl-Methyl ether
Molecular Formula: C19H24O2
Molecular Weight: 284.39
Percent Composition: C 80.24%, H 8.51%, O 11.25%
Properties: Blades from methanol, mp 153-155°.
Melting point: mp 153-155°
Derivative Type: dl-Benzoate
Molecular Formula: C25H26O3
Molecular Weight: 374.47
Percent Composition: C 80.18%, H 7.00%, O 12.82%
Properties: Prisms from methanol, mp 197-198°.
Melting point: mp 197-198°
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