319. Altrenogest
Nomenclature
CAS number: 850-52-2
(17β)-17-Hydroxy-17-(2-propen-1-yl)estra-4,9,11-trien-3-one; 17α-allyl-17-hydroxyestra-4,9,11-trien-3-one; 13β-methyl-17α-allyl-Δ4,9,11-gonatriene-17β-ol-3-one; allytrenbolone; A-35957; RU-2267; Regu-Mate (Intervet). C21H26O2; mol wt 310.43.
C 81.25%, H 8.44%, O 10.31%.
Description and references
Synthetic oral progestogen. Prepn: NL 6401555; G. Nomine et al., US 3257278 (1964, 1966 both to Roussel). Effect on estrous cycle and fertility of mares: E. L. Squires et al., J. Anim. Sci. 49, 729 (1979). Synchronization of estrus in swine: R. R. Kraeling et al., ibid. 52, 831 (1981); in gilts: V. G. Pursel et al., ibid. 130.
