PEPTIDE CORPUS

Hormonal & Sexual Health

Gonadorelin

Space-filling model of Gonadorelin

Gonadorelin is synthetic GnRH built to the identical natural sequence, so the pituitary cannot tell it from the body's own. Its documented use is a question rather than a treatment: one injection, then luteinising hormone sampled over the following hour, and the shape of the response is the answer. In girls assessed for early puberty, a single 40-minute sample identified central precocious puberty with 98 percent sensitivity and 100 percent specificity. Given by pump in pulses instead, it induced ovulation in a retrospective cohort of 66 women with hypothalamic amenorrhoea, with a cumulative live birth rate of 65.9 percent per treatment. No human gonadorelin product is currently FDA-approved, and the old brand name, Factrel, survives on DailyMed as a veterinary product.

Last updated

Studied forPituitary function testing · Gonadotropin response research · Reproductive endocrinology context
Evidence on file2 randomised human trials · 3 human observational studies · 3 animal studies · 2 citations not yet graded
Strongest sourceNCT01976728: A Multicenter, Double-Blind, Randomized, Placebo-Controlled Study Evaluating Three Doses of Subc… (randomised human trial)

Mechanism

Binds pituitary GnRH receptors to release luteinising hormone and follicle-stimulating hormone from the anterior pituitary.

Reported effects

What sources associate with this compound. Reported categories, not outcomes we have graded — each would need its own citation and rung.

  • Pituitary function testing
  • Gonadotropin response research
  • Reproductive endocrinology context

Dosing on file unverified

100 mcg (0.1 mg) SC/IV single dose; 5 mcg q90min (range 1-20 mcg) IV by pump × 21 days

Carried from a source that labels it unverified, and reproduced with that label attached. A record of what is reported, not a recommendation. No citation on this page establishes it.

Literature on file 11

Not graded

2 citations whose study design could not be read from the title. Left ungraded rather than guessed at.

Identity

PubChem CID 638793 computed 3D conformer Space-filling 3D model of Gonadorelin, carbon grey, nitrogen blue, oxygen red
Built from the SMILES on this record — the atoms and bonds are exact. The shape is one computed low-energy pose, not a measured structure: a flexible peptide in solution has no single conformation, and where the SMILES leaves a stereocentre undefined the pose commits to one arbitrarily. The skeletal formula below claims connectivity and nothing more, which is what we actually know.
Skeletal formulathe canonical depiction
2D chemical structure of Gonadorelin

Drawn by PubChem from CID 638793, the identifier on this record.

Molecular weight
1182.3
Molecular formula
C55H75N17O13
CAS number
33515-09-2
PubChem CID
638793
InChI key
XLXSAKCOAKORKW-AQJXLSMYSA-N
Sequence
XHWSYGLRPG
SMILES
CC(C)C[C@@H](C(=O)N[C@@H](CCCN=C(N)N)C(=O)N1CCC[C@H]1C(=O)NCC(=O)N)NC(=O)CNC(=O)[C@H](CC2=CC=C(C=C2)O)NC(=O)[C@H](CO)NC(=O)[C@H](CC3=CNC4=CC=CC=C43)NC(=O)[C@H](CC5=CN=CN5)NC(=O)[C@@H]6CCC(=O)N6
InChI
InChI=1S/C55H75N17O13/c1-29(2)19-38(49(80)67-37(9-5-17-60-55(57)58)54(85)72-18-6-10-43(72)53(84)62-25-44(56)75)66-46(77)26-63-47(78)39(20-30-11-13-33(74)14-12-30)68-52(83)42(27-73)71-50(81)40(21-31-23-61-35-8-4-3-7-34(31)35)69-51(82)41(22-32-24-59-28-64-32)70-48(79)36-15-16-45(76)65-36/h3-4,7-8,11-14,23-24,28-29,36-43,61,73-74H,5-6,9-10,15-22,25-27H2,1-2H3,(H2,56,75)(H,59,64)(H,62,84)(H,63,78)(H,65,76)(H,66,77)(H,67,80)(H,68,83)(H,69,82)(H,70,79)(H,71,81)(H4,57,58,60)/t36-,37-,38-,39-,40-,41-,42-,43-/m0/s1

Notes unverified prose

Diagnostic and fertility use; Lutrepulse; Drugs.com; MIMS; Diagnostic/fertility use

Not on file 1

All 8 tracked fields hold a value on this record. 1 further absence is named below. A blank field is a bug; a named absence is a finding.

Each field links to every other record missing the same thing. The full ledger holds 765 gaps across 163 records.

Listed prices 51

What 26 shops we track listed for Gonadorelin, read from their own public catalogues on 2026-09-14. We take no commission on these and they are not ranked by any payment — how vendors are scored.

Compare prices51 listings from 26 shops
Listed in GBP
VendorSizePricePer mg
Direct Peptides Canada 2 mg £12.38 GBP £6.19/mg
Direct Peptides USA 2 mg £12.38 GBP £6.19/mg
Pharma Lab Global Canada 2 mg £12.91 GBP £6.46/mg
Direct Peptides Canada 2 mg £14.96 GBP £7.48/mg
Direct Peptides USA 2 mg £14.96 GBP £7.48/mg
Pharma Lab Global Canada 2 mg £15.49 GBP £7.75/mg
Direct Peptides Canada 2 mg £21.36 GBP £10.68/mg
Direct Peptides USA 2 mg £21.36 GBP £10.68/mg
Pharma Lab Global Canada 2 mg £21.89 GBP £10.95/mg
Direct Peptides Canada 2 mg £29.91 GBP £14.96/mg
Direct Peptides USA 2 mg £29.91 GBP £14.96/mg
Pharma Lab Global Canada 2 mg £30.98 GBP £15.49/mg
Direct Peptides Canada 2 mg £40.38 GBP £20.19/mg
Direct Peptides USA 2 mg £40.38 GBP £20.19/mg
Pharma Lab Global Canada 2 mg £41.82 GBP £20.91/mg
Direct Peptides Canada 2 mg £41.96 GBP £20.98/mg
Direct Peptides USA 2 mg £41.96 GBP £20.98/mg
Pharma Lab Global Canada 2 mg £42.49 GBP £21.25/mg
Direct Peptides Canada size not listed £20.38 GBP —
Direct Peptides USA size not listed £20.38 GBP —
Pharma Lab Global Canada size not listed £20.91 GBP —
Pharma Lab Global Canada size not listed £36.82 GBP —
Direct Peptides Canada size not listed £37.75 GBP —
Direct Peptides USA size not listed £37.75 GBP —
Listed in USD
VendorSizePricePer mg
Peptagon 10 mg $36.00 USD $3.60/mg
Peptagon 5 mg $29.00 USD $5.80/mg
Liberty Peptides 10 mg $64.00 USD $6.40/mg
Paramount Peptides 10 mg $65.45 USD $6.54/mg
Nationwide Peptides 5 mg $33.00 USD $6.60/mg
Pure Peptide Labs 5 mg $39.95 USD $7.99/mg
aminousa 10 mg $80.00 USD $85.00 USD $8.00/mg
Oasis Labs 10 mg $84.00 USD $8.40/mg
Pure Health Peptides (GLP Supplies) 2 mg $17.00 USD $8.50/mg
USA Peptide Sciences 10 mg $85.00 USD $8.50/mg
BioGenix Peptides 2 mg $23.00 USD $11.50/mg
Swiss Chems ships worldwide 2 mg $24.95 USD $12.47/mg
Nationwide Peptides 2 mg $25.00 USD $12.50/mg
Umbrella Labs 2 mg $25.99 USD $12.99/mg
Behemoth Labz 5 mg $93.98 USD $18.80/mg
Behemoth Labz 2 mg $37.60 USD $18.80/mg
Peptides.GG 2 mg $40.00 USD $20.00/mg
Umbrella Labs 2 mg $54.99 USD $27.50/mg
Soma - 2 mg $59.00 USD $29.50/mg
Pure Lab Peptides 2 mg $79.99 USD $39.99/mg
PureRawz ships worldwide 2 mg $91.23 USD $45.62/mg
Peptide Works size not listed $15.00 USD —
peaklabpeptides.com size not listed $31.00 USD —
Listed in CAD
VendorSizePricePer mg
Peptide Shop Canada 10 mg $60.30 CAD $6.03/mg
Canada Peptide 10 mg $85.99 CAD $8.60/mg
Northern Peptides 5 mg $65.00 CAD $13.00/mg
Pacific Peptides 5 mg $75.00 CAD $15.00/mg

Prices are the vendor's own listing, reproduced with the date we read it — never converted between currencies, and compared per milligram only where the vendor states the vial size.

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