Reconstituting a 10 mg BPC-157 vial in 2 mL of solvent gives a stock of 5 mg/mL, which is about 3.52 mM given the peptide's molecular weight of 1419.5 g/mol.
How is the concentration calculated?
Stock concentration in mg/mL is simply the vial mass divided by the solvent volume added. For a 10 mg vial: 10 mg ÷ 2 mL = 5 mg/mL; 10 mg ÷ 1 mL = 10 mg/mL; 10 mg ÷ 4 mL = 2.5 mg/mL. Choose the volume that puts your working range on scale for your assay.
How do you convert to molarity?
Molar concentration = (mg/mL) ÷ MW × 1000, in mM. With MW 1419.5: a 5 mg/mL stock is 5 ÷ 1419.5 × 1000 ≈ 3.52 mM. A 10 mg/mL stock is ≈ 7.04 mM. Working dilutions are then prepared by serial dilution into assay buffer.
What solvent is used?
Lyophilized BPC-157 is typically reconstituted with bacteriostatic reconstitution solution; the full method is in our concentration and reconstitution math guide. Research-grade BPC-157 dissolves readily in aqueous solvent.
All figures here are concentration math for in-vitro stock preparation and are not a recommendation for any use in humans or animals.
Related research guides
- BPC-157 pentadecapeptide: sequence and structure
- Concentration and reconstitution math guide
- Sourcing BPC-157 as a research material
Research-use note
All materials discussed are supplied for in vitro laboratory research use only, and are not for human or animal use.








