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DSIP Reconstitution Calculator

For in vitro research use only · Not medical advice

Preset to a 10 mg DSIP vial in 2 mL of diluent. A 10 mg vial in 2 mL gives 5 mg/mL. Keep the reconstituted vial protected from light throughout.

DSIP reconstitution

Preset to a common DSIP vial size and diluent volume. Adjust any field for your own laboratory protocol.

mg
mL
mcg
Concentration
5
mg/mL
Portion volume
0.100
mL
Portions / vial
20
per vial

A 10 mg DSIP vial reconstituted with 2 mL gives 5 mg/mL. Measuring 0.100 mL gives 500 mcg per portion — about 20 portions from the vial.

Choosing a diluent for DSIP

Water-soluble, but distinctly more acidic than the other short peptides here: two acidic residues (Asp, Glu) and no basic residues give it a low isoelectric point. Solubility is therefore good at neutral and alkaline pH and drops as the solution approaches the pI in the acidic range — the opposite pH behaviour to cationic peptides like Selank.

PrimarySterile or bacteriostatic water
Alternative 1Phosphate-buffered saline
Alternative 2Dilute ammonium bicarbonate for difficult lots

Handling notes for DSIP

  • Store and handle protected from light at all stages, including during reconstitution.
  • Keep working solutions at or above neutral pH; acidification risks precipitation near the isoelectric point.
  • Avoid prolonged storage of reconstituted material — the isomerisation route is slow but cumulative.

After reconstitution

StorageRefrigerate at 2–8 °C, protected from light on account of the N-terminal tryptophan.
Working windowCommonly worked with for 2–3 weeks at 2–8 °C.
Freeze–thawAliquot on reconstitution. Freeze–thaw cycling of an acidic peptide solution also risks local pH shifts as buffer components crystallise at different rates.
Full DSIP storage reference
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Research Use Only. This calculator is a convenience reference for laboratory measurement. All values are for in-vitro research applications only. Popular Peptides does not provide medical advice. Products sold by Popular Peptides are not approved by Health Canada for human or veterinary therapeutic use. Always follow qualified research protocols and institutional guidelines.