143873-63-6 D-Pclphe(2)-trp(3)-trp(6)-LHRH GNRH, D-pclphe(2)-trp(3)-trp(6)- LHRH, 4-Clphe(2)-Trp(3,6)- LHRH, D-pclphe(2)-trp(3)-trp(6)- LHRH, D-pclphenylalanyl(2)-tryptophyl(3)-tryptophan(6)- LHRH-Ptt Luteinizing hormone-releasing factor (pig), 2-(4-chloro-D-phenylalanine)-3-D-tryptophan-6-D-tryptophan-