Description
PrymaLab · Research use only
DSIP 10MG
Delta sleep-inducing peptide (WAGGDASGE), 10 mg freeze-dried in one vial
DSIP, delta sleep-inducing peptide, is the nonapeptide Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu, isolated from rabbits and characterised in 1977. This vial holds 10 mg of it as freeze-dried powder, twice the 5 mg main fill, made as its own lot with its own certificate. Its literature runs from rabbit EEG studies to reviews that still could not identify a receptor or gene for it.
Specifications
| Property | Value |
|---|---|
| Compound | DSIP Delta sleep-inducing peptide |
| CAS number | 62568-57-4 |
| Molecular formula | C35H48N10O15 |
| Theoretical mass | 848.8 Da |
| Sequence / structure | H-WAGGDASGE-OH (9 residues; free N- and C-termini) |
| Label claim | 10 mg/vial |
| Form | Lyophilized (freeze-dried) powder or cake in a sealed glass vial with a rubber stopper and aluminium crimp cap |
| Storage, sealed | −20 °C, desiccated, dark |
| Purity specification | 99.0% or higher by RP-HPLC |
| Lot certificate | Results for the lot now shipping are in the certificate panel on this page |
| Safety data sheet | PL-SDS-046 |
Other fills
This is the 10 mg fill. The DSIP 5MG page is the main listing for this compound, with the full research summary and every fill side by side. Other fills: 5 mg.
What the research covers
The original 1977 study tested synthetic DSIP alongside fragments and analogues in 58 rabbits and found that only DSIP itself specifically enhanced delta and spindle EEG patterns1. Nearly thirty years later a review judged the case for DSIP as a sleep factor weak, partly because no DSIP gene, precursor or receptor had been isolated2. The DSIP 5 mg vial page has the full research summary, including the human and blood stability work.
The What is DSIP (Delta Sleep-Inducing Peptide)? guide covers the literature in more depth.
How each lot is tested
Every lot is tested in PrymaLab’s own laboratory in Ashland, Kentucky before release: RP-HPLC for purity, LC-MS for identity, Karl Fischer titration for water, LAL for endotoxin and USP <71> for sterility. The results for the lot now shipping are in the certificate panel on this page, and the certificate number, key and QR code can be checked on the verify page. These are in-house results from PrymaLab Analytical, not an independent test, and the lab is not accredited to ISO 17025. The third-party testing guarantee on this page still applies: if any independent laboratory finds the wrong compound, or less than the stated purity or amount, the order is refunded and the cost of the test is reimbursed.
Frequently asked questions
Is the 10 mg vial the same peptide as the 5 mg?
Yes: H-WAGGDASGE-OH, theoretical mass 848.8 Da. The 10 mg fill holds about 11.8 µmol and is produced and tested as a separate lot, so it carries its own lot number and the certificate shown in the panel on this page.
Is a larger fill harder to keep?
Sealed, it is stored like the 5 mg vial: −20 °C, desiccated and away from light. After reconstitution a larger fill usually means solution held longer at 2 to 8 °C, so open it when the work calls for that amount.
References
- Schoenenberger GA, Monnier M. Characterization of a delta-electroencephalogram (-sleep)-inducing peptide. Proc Natl Acad Sci U S A. 1977;74(3):1282-6. DOI · PubMed
- Kovalzon VM, Strekalova TV. Delta sleep-inducing peptide (DSIP): a still unresolved riddle. J Neurochem. 2006;97(2):303-9. DOI · PubMed
Research use only
For laboratory research use only. DSIP 10MG is not a drug, food, cosmetic or dietary supplement, is not approved by the FDA or any comparable authority for human or veterinary use, and must not be given to people or animals. It is sold to qualified researchers and institutions, and the buyer is responsible for lawful handling and disposal.
Other formats of DSIP
DSIP is also stocked as DSIP 10mg Nasal Spray and DSIP 10mg preloaded 3ml pen. Each listing states its own quantity and concentration, and the pen and vial comparison explains what changes between formats.
Reviews
There are no reviews yet.