PT-141 Peptide Dosage Calculator
Computes the reconstituted concentration, the draw volume, and the corresponding mark on a U-100 syringe scale.
For laboratory research use only. Not for human or veterinary use.
mg
mL
mg
Units on the scale
Enter a mass to draw
Concentration
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Draw volume
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Draws per vial
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0.3 mL syringe
Reading the scale: the highlighted mark corresponds to the calculated volume on a standard U-100 insulin syringe — 100 units = 1 mL, and each numbered tick is one unit.
Reconstituting PT-141 Peptide
PT-141 is a cyclic peptide of 1025.2 daltons in a 10 mg vial. The mass arithmetic is the standard case: 2 mL gives 5 mg/mL, 1 mL gives 10. The point of interest is its near-identity with melanotan 2 at 1024.2 daltons — a separation of roughly one dalton across two structurally related melanocortin compounds. Reconstituted to the same mass concentration, the two sit at effectively the same molarity, making this one of the few pairs in the catalog where mass and molar comparisons converge rather than diverge.
More reconstitution tools
- Peptide Calculator — the general calculator, any vial mass and diluent volume.
- How to Reconstitute Peptides — the procedure, the diluent options, and the handling errors that wreck a peptide before it reaches the bench.
- PT-141 Peptide — specification, molecular data, and published COA.