Tool

Selank reconstitution calculator

Selank ships as a 10 mg vial 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
5 mg/mL
5 µg/µL · 5000 µg/mL
Molar
6.65 mM
6650 µM

Concentration = peptide mass ÷ diluent volume. Molarity = (mg/mL ÷ g/mol) × 1000. Research use only.

Selank at common volumes

Vial1 mL2 mL3 mL5 mL
10 mg10 mg/mL13.3 mM5 mg/mL6.65 mM3.33 mg/mL4.43 mM2 mg/mL2.66 mM

Selank vial sizes we sell, at four diluent volumes. Molarity uses 751.87 g/mol. Other volumes

What the numbers mean for Selank

Selank has a molecular weight of 751.87 g/mol (C33H57N11O9). So 10 mg is about 13.3 micromoles, whatever volume you dissolve it in. At 5 mg/mL that is 6.65 mM.

Sequence: TKPRPGP. 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.

The vial holds 10 mg of powder 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 10 mg vial of Selank?+

Any volume that gives a concentration you can measure easily. 1 mL gives 10 mg/mL, 2 mL gives 5 mg/mL, 5 mL gives 2 mg/mL. The peptide amount stays 10 mg whatever you add.

What is the concentration of Selank 10 mg in 2 mL?+

5 mg/mL, which is the same as 5 µg/µL. With a molecular weight of 751.87 g/mol that is 6.65 mM.

Where does the Selank molecular weight come from?+

The reference value on the product's Specifications tab, 751.87 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

Research use only. Not for human or animal consumption.