The Peptide Calculator

Compound molar masses

64 compounds, each with a molar mass read from a public chemical record. The figure is what makes a mass convertible into a molar amount.

Educational arithmetic only. Not medical advice and not a dosing protocol.

Molar mass in grams per mole, as retrieved from the public chemical record cited on each page. Sorted by name.
CompoundMolar mass, g/molFormula
Afamelanotide1646.8C78H111N21O19
Amylin3903.3C165H261N51O55S2
AOD96041815.1C78H123N23O23S2
ARA 2901257.3C51H84N16O21
BPC-1571419.5C62H98N16O22
Bremelanotide1025.2C50H68N14O10
Cagrilintide4409C194H312N54O59S2
Capromorelin505.6C28H35N5O4
Carnosine226.23C9H14N4O3
CJC-12953647.2C165H269N47O46
Cortagen430.4C17H26N4O9
Delta sleep-inducing peptide848.8C35H48N10O15
Desmopressin1069.2C46H64N14O12S2
Elamipretide639.8C32H49N9O5
Eloralintide4526C201H319N49O65S2
Epitalon390.35C14H22N4O9
Exenatide4187C184H282N50O60S
FOXO4-DRI5358C228H388N86O64
GHK-Cu400.9C14H21CuN6O4-
Ghrelin3370.9C149H249N47O42
GHRP-2818C45H55N9O6
GHRP-6873C46H56N12O6
GLP-13297.6C149H226N40O45
Glutathione307.33C10H17N3O6S
Gonadorelin1182.3C55H75N17O13
Hexarelin887C47H58N12O6
Humanin2687.2C119H204N34O32S2
Ibutamoren528.7C27H36N4O5S
Ipamorelin711.9C38H49N9O5
Kisspeptin-101302.4C63H83N17O14
KPV342.43C16H30N4O4
Larazotide725.8C32H55N9O10
Leuprolide1209.4C59H84N16O12
Liraglutide3751C172H265N43O51
Livagen461.5C18H31N5O9
Lixisenatide4858C215H347N61O65S
LL-374493C205H340N60O53
Mazdutide4476C207H317N45O65
Melanotan II1024.2C50H69N15O9
MOTS-c2174.6C101H152N28O22S2
Noopept318.4C17H22N2O4
Octreotide1019.2C49H66N10O10S2
Orforglipron883C48H48F2N10O5
Oxytocin1007.2C43H66N12O12S2
Petrelintide4192C185H305N49O61
Pinealon418.4C15H26N6O8
Pramlintide3949C171H267N51O53S2
Selank751.9C33H57N11O9
Semaglutide4114C187H291N45O59
Semax813.9C37H51N9O10S
Sermorelin3357.9C149H246N44O42S
Setmelanotide1117.3C49H68N18O9S2
Somatostatin1637.9C76H104N18O19S2
Survodutide4232C192H289N47O61
TB-500889C38H68N10O14
Teriparatide4118C181H291N55O51S2
Tesamorelin5136C221H366N72O67S
Thymosin alpha 13108.3C129H215N33O55
Thymosin beta 44963C212H350N56O78S
Thymulin858.9C33H54N12O15
Tirzepatide4813C225H348N48O68
Triptorelin1311.4C64H82N18O13
Vasoactive intestinal peptide3326.8C147H237N43O43S
Vasopressin1084.2C46H65N15O12S2

Read this with the answer

This is educational arithmetic on figures entered by the reader. It is not medical advice, not a dosing protocol, and not a recommendation that anything be prepared, obtained or administered.

Nothing here states what quantity is appropriate for anyone, and there is no function in it that produces an amount to administer. A question about anyone’s health belongs with a licensed clinician who can examine the person asking.

Most compounds named here are research chemicals that are not approved by the FDA for human use. An exact calculation is not an accurate measurement: what is actually in a syringe depends on the preparation and the device, neither of which this page can see.

Why a molar mass is the only compound fact this site holds

This is an arithmetic tool. The one fact it needs about a named compound is the molar mass, because that is what converts a labelled mass into a count of molecules, and a count of molecules is the only basis on which two compounds compare at all.

Everything else about these compounds - what the literature reports, what any study administered, what any register says in detail - sits on the research corpus and is linked from each page rather than copied onto it.

The compounds that are not here

13 compounds in the source data have no sourced molar mass and therefore have no page here. They are not omitted for editorial reasons and nothing is implied about them: without that figure the only calculation the page would exist to do cannot be done, and research policy forbids filling the gap with a plausible number or borrowing a similar compound's value.

Those compounds are ace-031, cerebrolysin, cortexin, dulaglutide, follistatin-344, igf-1-des, igf-1-lr3, maridebart-cafraglutide, mechano-growth-factor, retatrutide, somatropin, testagen, thymalin. The research corpus covers them; this site does not.

How to check any figure here

Every page names the PubChem CID the molar mass was read from and links to it. The chemical record is the authority; this is a dated copy of one field from it. A figure that no longer matches the record is wrong here and is corrected against the record, not defended.