Gonadorelin hydrochloride [USAN]; LH-RH hydrochloride; 5-Oxo-L-prolyl-L-histidyl-L-tryptophyl-L-seryl-L-tyrosylglycyl-; wL-leucyl-L-arginyl-L-prolylglycinamide hydrochloride. Note-Gonadorelin Hydrochloride is C55H75N17O13 as the monohydrochloride or the dihydrochloride or as a mixture of these; 5-Oxo-L-prolyl-L-histidyl-L-tryptophyl-L-seryl-L-tyrosylglycyl-L-leucyl-L-arginyl-L-prolylglycinamide hydrochloride; Factrel; Gonadorelin HCl; Gonadorelin hydrochloride; UNII-3PFC574ITA; Luteinizing hormone-releasing factor hydrochloride; Luteinizing Hormone-Releasing Factor (Swine), Hydrochloride