DSIP is a nonapeptide first isolated in the 1970s from the cerebral venous blood of sleeping rabbits. It crosses the blood brain barrier readily, which is part of why it continues to appear in research on sleep architecture, circadian regulation and neuroendocrine signalling.

Cognitive series
DSIP 5mg
Delta Sleep-Inducing Peptide, a nine amino acid neuropeptide first isolated from cerebral venous blood. 99%+ purity, U.S. lab tested.
99%+ PURITYAH-DSIP-5In stock
$29.99
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1
Certificate ships with the vial — lot-matched COA, chromatogram, handling sheet.
Held at −20 °C — pulled once, packed with coolant sized to transit.
Order before 2pm — leaves cold storage the same working day.
Specification
Written On The Vial.
| SEQUENCE | Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu |
|---|---|
| MOLECULAR FORMULA | C35H48N10O15 |
| MOLECULAR WEIGHT | 848.81 g/mol |
| CAS NUMBER | 62568-57-4 |
| PRESENTATION | Lyophilised powder, sealed vial |
| STORAGE | -20 °C sealed · 2-8 °C reconstituted |
| SOLUBILITY | Bacteriostatic water |
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