19(R)-HYDROXY PROSTAGLANDIN F2ALPHA

19(R)-hydroxy PGF_2α is an ω-1 hydroxylase metabolite of PGF_2α found in human semen. The concentration of 19(R)-hydroxy PGF compounds (F_2α and F_1α together) in fresh human semen is about 20 μg/ml.¹ 19(R)-hydroxy PGF_2α exhibits no activity at the FP receptor of the cat iris sphincter muscle at concentrations up to 1 μM.²

ChEBI: 19R-Hydroxy-PGF2alpha is a prostanoid.

1. Taylor, P.L., and Kelly, R.W. The occurrence of 19-hydroxy F prostaglandins in human semen FEBS Lett. 57(1),22-25(1975).
2. Woodward, D.F., Protzman, C.E., Krauss, A.H.P., et al. Identification of 19(R)-OH prostaglandin E₂ as a selective prostanoid EP₂-receptor agonist Prostaglandins 46(4),371-383(1993).