75851-13-7 Ac-D-Phe(1)-D-4-Cl-phe(2)-D-trp(3,6)-gnrh Appt-gnrh GNRH, Ac-D-phe(1)-D-4-Cl-phe(2)-D-trp(3,6)- GNRH, acetyl-dehydro-1-phenylalanyl-dehydro-p-Cl-2-phenylalanyl-dehydro-3,6-tryptophyl- LHRH, ac-Dehydro-phe(1)-dehydro-4-Cl-phe(2)-dehydro-trp(3,6)- Luteinizing hormone-releasing factor (pig), 1-N-acetyl-D-phenylalanine-2-(4-chloro-D-phenylalanine)-3-D-tryptophan-6-D-tryptophan-