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Record Information
StatusExpected but not Quantified
Creation Date2012-09-06 15:16:50 UTC
Update Date2020-02-26 21:40:20 UTC
Secondary Accession Numbers
  • HMDB14782
Metabolite Identification
Common NameGonadorelin
DescriptionGonadorelin is only found in individuals that have used or taken this drug. Gonadorelin is another name for gonadotropin-releasing hormone (GnRH). It is a synthetic decapeptide prepared using solid phase peptide synthesis. GnRH is responsible for the release of follicle stimulating hormone and leutinizing hormone from the anterior pitutitary. Like naturally occurring gonadotropin-releasing hormone (GnRH), gonadorelin primarily stimulates the synthesis and release of luteinizing hormone (LH) from the anterior pituitary gland. Follicle-stimulating hormone (FSH) production and release is also increased by gonadorelin, but to a lesser degree. In prepubertal females and some gonadal function disorders, the FSH response may be greater than the LH response. For the treatment of amenorrhea, delayed puberty, and infertility the administration of gonadorelin is used to simulate the physiologic release of GnRH from the hypothalamus in treatment of delayed puberty, treatment of infertility caused by hypogonadotropic hypogonadism, and induction of ovulation in those women with hypothalamic amenorrhea. This results in increased levels of pituitary gonadotropins LH and FSH, which subsequently stimulate the gonads to produce reproductive steroids.
Gonadoliberin IKegg
Luteinizing hormone-releasing hormoneHMDB
FSH Releasing hormoneHMDB
FSH-Releasing hormoneHMDB
Gonadorelin hydrochlorideHMDB
lH-Releasing hormoneHMDB
Gonadotropin releasing hormoneHMDB
Luteinizing hormone releasing hormoneHMDB
lH-FSH Releasing hormoneHMDB
Gonadotropin-releasing hormoneHMDB
lH FSH Releasing hormoneHMDB
lH Releasing hormoneHMDB
Releasing hormone, LHFSHHMDB
Gonadorelin acetateHMDB
LHFSH Releasing hormoneHMDB
Chemical FormulaC55H75N17O13
Average Molecular Weight1182.2901
Monoisotopic Molecular Weight1181.573025571
IUPAC NameN-(1-{2-[(carbamoylmethyl)carbamoyl]pyrrolidin-1-yl}-5-[(diaminomethylidene)amino]-1-oxopentan-2-yl)-2-{2-[2-(3-hydroxy-2-{2-[3-(1H-imidazol-5-yl)-2-[(5-oxopyrrolidin-2-yl)formamido]propanamido]-3-(1H-indol-3-yl)propanamido}propanamido)-3-(4-hydroxyphenyl)propanamido]acetamido}-4-methylpentanamide
Traditional Namegonadotropin releasing hormone
CAS Registry Number6918-09-8
InChI Identifier
Chemical Taxonomy
Description belongs to the class of organic compounds known as polypeptides. These are peptides containing ten or more amino acid residues.
KingdomOrganic compounds
Super ClassOrganic Polymers
Sub ClassNot Available
Direct ParentPolypeptides
Alternative Parents
  • Polypeptide
  • Alpha peptide
  • Tyrosine or derivatives
  • Phenylalanine or derivatives
  • Histidine or derivatives
  • Leucine or derivatives
  • N-acyl-alpha amino acid or derivatives
  • Proline or derivatives
  • Triptan
  • Alpha-amino acid amide
  • Serine or derivatives
  • N-substituted-alpha-amino acid
  • Alpha-amino acid or derivatives
  • Amphetamine or derivatives
  • 3-alkylindole
  • Indole
  • Indole or derivatives
  • N-acylpyrrolidine
  • Pyrrolidine carboxylic acid or derivatives
  • Pyrrolidine-2-carboxamide
  • 1-hydroxy-2-unsubstituted benzenoid
  • Phenol
  • Monocyclic benzene moiety
  • Fatty amide
  • N-acyl-amine
  • Fatty acyl
  • Benzenoid
  • Pyrrolidone
  • 2-pyrrolidone
  • Substituted pyrrole
  • Imidazole
  • Heteroaromatic compound
  • Pyrrolidine
  • Azole
  • Tertiary carboxylic acid amide
  • Pyrrole
  • Guanidine
  • Secondary carboxylic acid amide
  • Carboxamide group
  • Primary carboxylic acid amide
  • Lactam
  • Azacycle
  • Carboxylic acid derivative
  • Organoheterocyclic compound
  • Organic 1,3-dipolar compound
  • Carboximidamide
  • Propargyl-type 1,3-dipolar organic compound
  • Primary alcohol
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Carbonyl group
  • Organic oxide
  • Organic oxygen compound
  • Organopnictogen compound
  • Organonitrogen compound
  • Alcohol
  • Organooxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
  • Gonadotropin-releasing hormone [KO:K05252] (C07607 )

Biological location:


Industrial application:

Physical Properties
Experimental Properties
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water Solubility0.059 g/LNot Available
LogP-3.6Not Available
Predicted Properties
Water Solubility0.059 g/LALOGPS
pKa (Strongest Acidic)9.47ChemAxon
pKa (Strongest Basic)11.16ChemAxon
Physiological Charge2ChemAxon
Hydrogen Acceptor Count17ChemAxon
Hydrogen Donor Count16ChemAxon
Polar Surface Area474.63 ŲChemAxon
Rotatable Bond Count31ChemAxon
Refractivity302.51 m³·mol⁻¹ChemAxon
Polarizability121.19 ųChemAxon
Number of Rings6ChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleYesChemAxon
Spectrum TypeDescriptionSplash KeyView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-022a-9612402201-7dff9b7217a0eacedfb2Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00di-9211300000-050a8099fd2f78a96960Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00e9-9010100000-8680e82fb261a184e63eSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-08gi-2900100000-4512eaf4c4ccb20db288Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0c00-4900001000-7d38c37ce1a213415f70Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-002f-9101002210-ee45e1d0424df22bb481Spectrum
Biological Properties
Cellular Locations
  • Membrane
Biospecimen Locations
  • Blood
  • Urine
Tissue LocationsNot Available
Normal Concentrations
BloodExpected but not Quantified Not AvailableNot AvailableTaking drug identified by DrugBank entry DB00644 details
UrineExpected but not Quantified Not AvailableNot AvailableTaking drug identified by DrugBank entry DB00644 details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB00644
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID33562
KEGG Compound IDC07607
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkGonadotropin-releasing hormone
METLIN IDNot Available
PubChem Compound36523
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Dungan HM, Clifton DK, Steiner RA: Minireview: kisspeptin neurons as central processors in the regulation of gonadotropin-releasing hormone secretion. Endocrinology. 2006 Mar;147(3):1154-8. Epub 2005 Dec 22. [PubMed:16373418 ]
  2. Franceschini I, Lomet D, Cateau M, Delsol G, Tillet Y, Caraty A: Kisspeptin immunoreactive cells of the ovine preoptic area and arcuate nucleus co-express estrogen receptor alpha. Neurosci Lett. 2006 Jul 3;401(3):225-30. Epub 2006 Apr 18. [PubMed:16621281 ]


General function:
Involved in G-protein coupled receptor protein signaling pathway
Specific function:
Receptor for gonadotropin releasing hormone (GnRH) that mediates the action of GnRH to stimulate the secretion of the gonadotropic hormones luteinizing hormone (LH) and follicle- stimulating hormone (FSH). This receptor mediates its action by association with G-proteins that activate a phosphatidylinositol- calcium second messenger system. Isoform 2 may act as an inhibitor of GnRH-R signaling
Gene Name:
Uniprot ID:
Molecular weight:
  1. Lu ZL, Gallagher R, Sellar R, Coetsee M, Millar RP: Mutations remote from the human gonadotropin-releasing hormone (GnRH) receptor-binding sites specifically increase binding affinity for GnRH II but not GnRH I: evidence for ligand-selective, receptor-active conformations. J Biol Chem. 2005 Aug 19;280(33):29796-803. Epub 2005 Jun 20. [PubMed:15967801 ]
  2. Moles G, Carrillo M, Mananos E, Mylonas CC, Zanuy S: Temporal profile of brain and pituitary GnRHs, GnRH-R and gonadotropin mRNA expression and content during early development in European sea bass (Dicentrarchus labrax L.). Gen Comp Endocrinol. 2007 Jan 1;150(1):75-86. Epub 2006 Sep 8. [PubMed:16962597 ]
  3. Mamputha S, Lu ZL, Roeske RW, Millar RP, Katz AA, Flanagan CA: Conserved amino acid residues that are important for ligand binding in the type I gonadotropin-releasing hormone (GnRH) receptor are required for high potency of GnRH II at the type II GnRH receptor. Mol Endocrinol. 2007 Jan;21(1):281-92. Epub 2006 Sep 14. [PubMed:16973761 ]
  4. Lee PA, Houk CP: Gonadotropin-releasing hormone analog therapy for central precocious puberty and other childhood disorders affecting growth and puberty. Treat Endocrinol. 2006;5(5):287-96. [PubMed:17002488 ]
  5. Bliss SP, Navratil AM, Breed M, Skinner DC, Clay CM, Roberson MS: Signaling complexes associated with the type I gonadotropin-releasing hormone (GnRH) receptor: colocalization of extracellularly regulated kinase 2 and GnRH receptor within membrane rafts. Mol Endocrinol. 2007 Feb;21(2):538-49. Epub 2006 Oct 26. [PubMed:17068198 ]
  6. Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [PubMed:11752352 ]
General function:
Involved in G-protein coupled receptor protein signaling pathway
Specific function:
Receptor for gonadotropin releasing hormone II (GnRH II). This receptor mediates its action by association with G proteins that activate a phosphatidylinositol-calcium second messenger system (Potential)
Gene Name:
Uniprot ID:
Molecular weight:
  1. Morgan K, Sellar R, Pawson AJ, Lu ZL, Millar RP: Bovine and ovine gonadotropin-releasing hormone (GnRH)-II ligand precursors and type II GnRH receptor genes are functionally inactivated. Endocrinology. 2006 Nov;147(11):5041-51. Epub 2006 Aug 17. [PubMed:16916952 ]
  2. Mamputha S, Lu ZL, Roeske RW, Millar RP, Katz AA, Flanagan CA: Conserved amino acid residues that are important for ligand binding in the type I gonadotropin-releasing hormone (GnRH) receptor are required for high potency of GnRH II at the type II GnRH receptor. Mol Endocrinol. 2007 Jan;21(1):281-92. Epub 2006 Sep 14. [PubMed:16973761 ]
  3. Montagnani Marelli M, Moretti RM, Januszkiewicz-Caulier J, Motta M, Limonta P: Gonadotropin-releasing hormone (GnRH) receptors in tumors: a new rationale for the therapeutical application of GnRH analogs in cancer patients? Curr Cancer Drug Targets. 2006 May;6(3):257-69. [PubMed:16712461 ]
  4. Li JH, Choe H, Wang AF, Maiti K, Wang C, Salam A, Chun SY, Lee WK, Kim K, Kwon HB, Seong JY: Extracellular loop 3 (EL3) and EL3-proximal transmembrane helix 7 of the mammalian type I and type II gonadotropin-releasing hormone (GnRH) receptors determine differential ligand selectivity to GnRH-I and GnRH-II. Mol Pharmacol. 2005 Apr;67(4):1099-110. Epub 2005 Jan 5. [PubMed:15635044 ]
  5. Silver MR, Sower SA: Functional characterization and kinetic studies of an ancestral lamprey GnRH-III selective type II GnRH receptor from the sea lamprey, Petromyzon marinus. J Mol Endocrinol. 2006 Jun;36(3):601-10. [PubMed:16720727 ]