azagly-nafarelin azagly-nafarelin azagly-nafarelin, sold under the brand name gonazon, is a gonadotropin-releasing hormone agonist (gnrh agonist) medication which is used in veterinary medicine in europe. it is a gnrh analogue and a synthetic peptide, specifically a decapeptide. the medication has been approved in europe as a solid silicone-based matrix implant for use as a contraceptive in animals such as male dogs, cats, and others, but is no longer or was never commercially available. the medication has also been used to treat benign prostatic hyperplasia in animals. in addition to its use in mammals, azagly-nafarelin has been approved for use in aquaculture fish, specifically to control ovulation in salmonids, and was the first gnrh agonist to be available for use in fish. it was introduced for use by 2005. azagly-nafarelinclinical datatrade namesgonazonother names6--1-9-luteinizing hormone-releasing factor (swine) 2-(aminocarbonyl)hydrazide; 6--10-deglycinamide-luteinizing hormone-releasing factor (pig) 2-(aminocarbonyl)hydrazideroutes ofadministrationimplant; injectiondrug classgnrh agonistidentifiers iupac name (s)-n-((6s,9s,12r,15s,18s,21s,24s)-21-((1h-indol-3-yl)methyl)-1,1-diamino-6-((s)-2-(2-carbamoylhydrazine-1-carbonyl)pyrrolidine-1-carbonyl)-15-(4-hydroxybenzyl)-18-(hydroxymethyl)-25-(1h-imidazol-5-yl)-9-isobutyl-12-(naphthalen-2-ylmethyl)-8,11,14,17,20,23-hexaoxo-2,7,10,13,16,19,22-heptaazapentacos-1-en-24-yl)-5-oxopyrrolidine-2-carboxamide cas number91991-07-0 y 113962-45-1 (acetate)unii2n7d33x56ncomptox dashboard (epa)dtxsid30873507 chemical and physical dataformulac65h82n18o13molar mass1323.484 g·mol−13d model (jsmol)interactive image smiles cc(c(nc((nc((nc((nc((nc((nc(1ccc(n1)=o)=o)cc2=cn=cn2)=o)cc3=cnc4=cc=cc=c43)=o)co)=o)cc5=cc=c(o)c=c5)=o)cc6=cc7=cc=cc=c7c=c6)=o)c(n(c(n8ccc8c(nnc(n)=o)=o)=o)ccc/n=c(n)\n)=o)c inchi inchi=1s/c65h82n18o13/c1-35(2)25-47(56(88)74-46(13-7-23-70-64(66)67)63(95)83-24-8-14-53(83)62(94)81-82-65(68)96)75-58(90)49(28-37-15-18-38-9-3-4-10-39(38)26-37)76-57(89)48(27-36-16-19-42(85)20-17-36)77-61(93)52(33-84)80-59(91)50(29-40-31-71-44-12-6-5-11-43(40)44)78-60(92)51(30-41-32-69-34-72-41)79-55(87)45-21-22-54(86)73-45/h3-6,9-12,15-20,26,31-32,34-35,45-53,71,84-85h,7-8,13-14,21-25,27-30,33h2,1-2h3,(h,69,72)(h,73,86)(h,74,88)(h,75,90)(h,76,89)(h,77,93)(h,78,92)(h,79,87)(h,80,91)(h,81,94)(h4,66,67,70)(h3,68,82,96)/t45-,46-,47-,48-,49+,50-,51-,52-,53-/m0/s1key:fdomsrgnwhjmgi-xrsszcmzsa-n