Tool

Cagrilintide reconstitution calculator

Cagrilintide ships as a 5 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
2.5 mg/mL
2.5 µg/µL · 2500 µg/mL
Molar
0.565 mM
565 µM

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

Cagrilintide at common volumes

Vial1 mL2 mL3 mL5 mL
5 mg5 mg/mL1.13 mM2.5 mg/mL0.565 mM1.67 mg/mL0.377 mM1 mg/mL0.226 mM

Cagrilintide vial sizes we sell, at four diluent volumes. Molarity uses 4425 g/mol. Other volumes

What the numbers mean for Cagrilintide

Cagrilintide has a molecular weight of 4425 g/mol (C194H310N54O59). So 5 mg is about 1.13 micromoles, whatever volume you dissolve it in. At 2.5 mg/mL that is 0.565 mM.

The vial holds 5 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 5 mg vial of Cagrilintide?+

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 Cagrilintide 5 mg in 2 mL?+

2.5 mg/mL, which is the same as 2.5 µg/µL. With a molecular weight of 4425 g/mol that is 0.565 mM.

Where does the Cagrilintide molecular weight come from?+

The reference value on the product's Specifications tab, 4425 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.