PEPTIDE CORPUS

Hormonal & Sexual Health

GnRH (Gonadotropin-Releasing Hormone)

Space-filling model of GnRH (Gonadotropin-Releasing Hormone)

GnRH (gonadotropin-releasing hormone) is a ten-amino-acid signal the hypothalamus releases in pulses, and those pulses start the entire reproductive cascade, pituitary first, then the testes or ovaries. Its most exploited property is a paradox: pulses switch the system on, but continuous exposure desensitises the receptor and switches it off. That one fact is why the same molecular family can be pumped in bursts to induce ovulation and, given constantly as leuprolide, shuts down testosterone in prostate cancer. GnRH itself is used diagnostically and by pulsatile pump rather than as an everyday medicine; most human evidence on file for the hormone is observational, and the analogues built from it carry the randomised trials.

Last updated

Studied forPituitary function testing · Hypogonadism research · Reproductive endocrinology context
Evidence on file1 randomised human trial · 5 human observational studies · 2 animal studies · 1 citation not yet graded
Strongest sourceNCT04037254: Randomized Phase II Trial of Niraparib With Standard Combination Radiotherapy and Androgen Depri… (randomised human trial)

Mechanism

Pulsatile binding to pituitary GnRH receptors triggers LH and FSH release; continuous exposure desensitises the receptor.

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
  • Hypogonadism research
  • Reproductive endocrinology context

Dosing on file unverified

100 mcg IV/SC single dose (diagnostic); 5 mcg q90min (range 1-20 mcg) by pulsatile 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 10

Not graded

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

Identity

PubChem CID 16132914 computed 3D conformer Space-filling 3D model of GnRH (Gonadotropin-Releasing Hormone), 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 GnRH (Gonadotropin-Releasing Hormone)

Drawn by PubChem from CID 16132914, the identifier on this record.

Molecular weight
1212.3
Molecular formula
C60H73N15O13
PubChem CID
16132914
UniProt
P01148 (precursor)
InChI key
NMJREATYWWNIKX-UHFFFAOYSA-N
Sequence
XHWSYGWLPG
SMILES
CC(C)CC(C(=O)N1CCCC1C(=O)NCC(=O)N)NC(=O)C(CC2=CNC3=CC=CC=C32)NC(=O)CNC(=O)C(CC4=CC=C(C=C4)O)NC(=O)C(CO)NC(=O)C(CC5=CNC6=CC=CC=C65)NC(=O)C(CC7=CN=CN7)NC(=O)C8CCC(=O)N8
InChI
InChI=1S/C60H73N15O13/c1-32(2)20-47(60(88)75-19-7-12-49(75)59(87)65-28-50(61)78)73-55(83)44(22-34-25-63-40-10-5-3-8-38(34)40)69-52(80)29-66-53(81)43(21-33-13-15-37(77)16-14-33)70-58(86)48(30-76)74-56(84)45(23-35-26-64-41-11-6-4-9-39(35)41)71-57(85)46(24-36-27-62-31-67-36)72-54(82)42-17-18-51(79)68-42/h3-6,8-11,13-16,25-27,31-32,42-49,63-64,76-77H,7,12,17-24,28-30H2,1-2H3,(H2,61,78)(H,62,67)(H,65,87)(H,66,81)(H,68,79)(H,69,80)(H,70,86)(H,71,85)(H,72,82)(H,73,83)(H,74,84)

Notes unverified prose

Fertility protocols; Lutrepulse

Not on file 2

1 of the 8 fields we track hold nothing on this record, and each says why. 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 10

What 10 shops we track listed for GnRH (Gonadotropin-Releasing Hormone), 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 prices10 listings from 10 shops
Listed in USD
VendorSizePricePer mg
Swiss Chems ships worldwide 2 mg $29.95 USD $14.97/mg
Raw Amino 2 mg $34.00 USD $17.00/mg
Biotech Peptides 2 mg $36.00 USD $18.00/mg
USA Peptide Sciences 2 mg $42.00 USD $21.00/mg
Behemoth Labz 1 mg $73.17 USD $73.17/mg
melanotanexpress.com size not listed $37.99 USD $47.98 USD —
Peptide Pros ships worldwide size not listed $37.99 USD $47.98 USD —
Peptides Warehouse size not listed $38.59 USD —
PureRawz ships worldwide size not listed $45.90 USD —
Almighty Peptides size not listed $53.00 USD —

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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