38234-21-8 66002-66-2 9-(N-Ethly-L-prolinamide)-10-deglycinamide 9-(N-Ethyl-L-prolinamide)-10-deglycinamide luteinizing hormone releasing factor Fertirelin Fertirelina [INN-Spanish] Fertireline [INN-French] Fertirelinum [INN-Latin]