Latanoprost Standard

(5Z)-7-[(1R,2R,3R,5S)-3,5-Dihydroxy-2-[(3R)-3-hydroxy-5-phenylpentyl]cyclopentyl]-5-heptenoic Acid 1-Methylethyl Ester; Isopropyl-(Z)-7-[(1R,2R,3R,5S)-3,5-dihydroxy-2 -[(3R)-3-hydroxy-5-phenylpentyl]cyclopentyl]-5-heptenoate; PhXA-41; GAAP Ofteno; Xalatan; (15R)-Latanoprost; Isopropyl (Z)-7-[(1R ,2R ,3R ,5S )-3,5-dihydroxy-2-[(3R )-3-hydroxy-5-phenylpentyl]cyclopentyl]-5-heptenoate; 5-Heptenoic acid, 7-[3,5-dihydroxy-2-(3-hydroxy-5-phenylpentyl)cyclopentyl]-1-methylethyl ester, [1R -[1a(Z),2b(R*),3a,5a]] (USP);