Tool
Semaglutide reconstitution calculator
Semaglutide ships as 5 mg, 10 mg, 20 mg, 30 mg vials of lyophilized powder. Pick the size, type the water volume, read the concentration. The molecular weight is already filled in, so the molar result is there too.
- Concentration
- 2.5 mg/mL
- 2.5 µg/µL · 2500 µg/mL
- Molar
- 0.608 mM
- 607.7 µM
Concentration = peptide mass ÷ diluent volume. Molarity = (mg/mL ÷ g/mol) × 1000. Research use only.
Semaglutide at common volumes
| Vial | 1 mL | 2 mL | 3 mL | 5 mL |
|---|---|---|---|---|
| 5 mg | 5 mg/mL1.22 mM | 2.5 mg/mL0.608 mM | 1.67 mg/mL0.405 mM | 1 mg/mL0.243 mM |
| 10 mg | 10 mg/mL2.43 mM | 5 mg/mL1.22 mM | 3.33 mg/mL0.81 mM | 2 mg/mL0.486 mM |
| 20 mg | 20 mg/mL4.86 mM | 10 mg/mL2.43 mM | 6.67 mg/mL1.62 mM | 4 mg/mL0.972 mM |
| 30 mg | 30 mg/mL7.29 mM | 15 mg/mL3.65 mM | 10 mg/mL2.43 mM | 6 mg/mL1.46 mM |
Semaglutide vial sizes we sell, at four diluent volumes. Molarity uses 4113.58 g/mol. Other volumes
What the numbers mean for Semaglutide
Semaglutide has a molecular weight of 4113.58 g/mol (C187H291N45O59). So 5 mg is about 1.22 micromoles, whatever volume you dissolve it in. At 2.5 mg/mL that is 0.608 mM.
Each vial holds only powder, from 5 mg up to 30 mg, and no diluent. Add bacteriostatic water down the inside of the glass, swirl, and do not shake. The reconstitution guide covers the handling; this page covers the arithmetic.
Common questions
How much water do I add to a 5 mg vial of Semaglutide?+
Any volume that gives a concentration you can measure easily. 1 mL gives 5 mg/mL, 2 mL gives 2.5 mg/mL, 5 mL gives 1 mg/mL. The peptide amount stays 5 mg whatever you add.
What is the concentration of Semaglutide 5 mg in 2 mL?+
2.5 mg/mL, which is the same as 2.5 µg/µL. With a molecular weight of 4113.58 g/mol that is 0.608 mM.
Which Semaglutide vial sizes does the calculator cover?+
The ones we sell: 5 mg, 10 mg, 20 mg, 30 mg. Pick a chip or type any other mass.
Where does the Semaglutide molecular weight come from?+
The reference value on the product's Specifications tab, 4113.58 g/mol. The observed mass for the vial you receive is on its own lab report, which the QR code on the vial opens.
Related pages
- Buy Semaglutide5 mg, 10 mg, 20 mg, 30 mg. Free shipping, same-day dispatch, report on the vial.
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- Semaglutide vs tirzepatide vs retatrutideThree incretin peptides, one, two and three receptors. How they differ by sequence, size and receptor target, and what tells them apart on a lab report.
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- Calculator for any peptideType your own mass and molecular weight.
- Reconstitution and storage guidesThe handling around the numbers.
Research use only. Not for human or animal consumption.