Catalogue / Hexarelin
Hexarelin
Also written as Examorelin.
A methylated analogue of GHRP-6 that differs from it by fourteen daltons, which is the whole of the analytical difficulty.
| Molecular formula | C47H58N12O6 |
| Average mass | 887.04 Da |
| Monoisotopic mass | 886.4602 Da |
| Written as | His-D-2-methyl-Trp-Ala-Trp-D-Phe-Lys-NH2 |
| Class | Growth hormone secretagogues |
| Determination | Peptide analysis, catalogue compound |
| Price | 341 USD |
Computed at build time from the composition shown on this page, not transcribed from a supplier datasheet.
Hexarelin has an average molecular weight of 887.04 daltons and a monoisotopic mass of 886.4602 daltons. Identity is confirmed by matching the measured deconvoluted mass to that figure, and purity is reported separately by reversed-phase chromatography at 214 nm. The two numbers answer different questions and neither substitutes for the other.
| Written sequence | His-D-2-methyl-Trp-Ala-Trp-D-Phe-Lys-NH2 |
| Molecular formula | C47H58N12O6 |
This compound contains residues outside the standard twenty, so a theoretical mass cannot be derived from a one-letter sequence. The masses above are computed from the molecular formula instead.
This is not a technicality. A laboratory that computes an expected mass from a sequence lookup will get the wrong number for this compound, and will then either report a false mismatch or adjust the expectation to fit the measurement.
| Charge | m/z |
|---|---|
| [M+1H]+ | 887.468 |
| [M+2H]2+ | 444.237 |
These are the ions an electrospray source is expected to produce for a neutral mass of 886.4602 daltons, computed from the monoisotopic mass and the proton mass. They are what a raw spectrum should show before deconvolution.
A report that gives only a deconvoluted mass without the charge states it was derived from cannot be checked. Deconvolution is a calculation, and a calculation whose inputs are not shown is an assertion.
| Fourteen daltons separates hexarelin from GHRP-6. That gap is smaller than the width of a poorly resolved isotope envelope on a low resolution instrument, and the two are sold at different prices. |
| Both tryptophan oxidation products overlap the mass range where the other compound sits, so oxidation state and identity have to be resolved together. |
| Retention times of the two compounds are close on standard gradients. |
Every compound fails in its own way. A generic peptide method applied without regard to these specifics produces a number that looks like a result and is not one.
Short synthetic peptides, most carrying D-amino acids or unnatural residues that make them resistant to serum peptidases and invisible to sequence-only reasoning.
LC-MS identity against a certified reference standard, purity by RP-HPLC at 214 nm. D-isomers are not resolved by a conventional C18 column and are not claimed to be.
Where the delivered milligram figure matters rather than the percentage, net peptide content by combustion analysis and water by Karl Fischer are added, and the certificate carries a closed mass balance instead of a single purity number.
| LC-MS identity | Measured mass |
| RP-HPLC purity | Area at 214 nm |
| Net peptide content | Milligrams |
| Water content | Karl Fischer |
| Counter-ion | Ion chromatography |
| Bacterial endotoxins | USP <85> |
What is the molecular weight of Hexarelin?
The average molecular weight is 887.04 daltons and the monoisotopic mass is 886.4602 daltons, computed from the molecular formula C47H58N12O6 shown on this page. Both figures are calculated rather than transcribed, so they can be checked against the stated composition.
How is Hexarelin tested for purity and identity?
LC-MS identity against a certified reference standard, purity by RP-HPLC at 214 nm. D-isomers are not resolved by a conventional C18 column and are not claimed to be. Purity describes the chromatographable fraction only and is not the same quantity as the peptide mass delivered per vial.
What goes wrong when Hexarelin is analysed?
Fourteen daltons separates hexarelin from GHRP-6. That gap is smaller than the width of a poorly resolved isotope envelope on a low resolution instrument, and the two are sold at different prices.
What does Hexarelin analysis cost at ANALYTON?
Peptide analysis, catalogue compound is priced at 341 US dollars, covering the determinations described on this page. Content, safety and elemental determinations are ordered alongside and are priced separately on the price list.
Other compounds in this class
Updated 2026-09-01. Masses computed at build, not transcribed.