Tool
Semax reconstitution calculator
Semax ships as 5 mg, 10 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
- 3.07 mM
- 3072 µM
Concentration = peptide mass ÷ diluent volume. Molarity = (mg/mL ÷ g/mol) × 1000. Research use only.
Semax at common volumes
| Vial | 1 mL | 2 mL | 3 mL | 5 mL |
|---|---|---|---|---|
| 5 mg | 5 mg/mL6.14 mM | 2.5 mg/mL3.07 mM | 1.67 mg/mL2.05 mM | 1 mg/mL1.23 mM |
| 10 mg | 10 mg/mL12.3 mM | 5 mg/mL6.14 mM | 3.33 mg/mL4.1 mM | 2 mg/mL2.46 mM |
Semax vial sizes we sell, at four diluent volumes. Molarity uses 813.92 g/mol. Other volumes
What the numbers mean for Semax
Semax has a molecular weight of 813.92 g/mol (C37H51N9O10S). So 5 mg is about 6.14 micromoles, whatever volume you dissolve it in. At 2.5 mg/mL that is 3.07 mM.
Sequence: MEHFPGP. The expected mass on the vial's mass-spec result is the molecular weight above; a match within a tenth of a percent is the identity check passing.
Each vial holds only powder, from 5 mg up to 10 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 Semax?
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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 Semax 5 mg in 2 mL?
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2.5 mg/mL, which is the same as 2.5 µg/µL. With a molecular weight of 813.92 g/mol that is 3.07 mM.
Which Semax vial sizes does the calculator cover?
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The ones we sell: 5 mg, 10 mg. Pick a chip or type any other mass.
Where does the Semax molecular weight come from?
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The reference value on the product's Specifications tab, 813.92 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 Semax5 mg, 10 mg. Free shipping, same-day dispatch, report on the vial.
- Does semax need to be refrigerated?Semax is stable as a dry powder and only needs the fridge once it is in solution. Storage, reconstitution, and what its lab report should show.
- Semax vs selankTwo Russian heptapeptides from completely different parents. Sequences, masses, and why the acetylated amidated versions weigh more.
- 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.