DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring nonapeptide (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu) first isolated in 1974 from the cerebral blood of sleeping rabbits. It is a frequent subject of laboratory research and is supplied as a lyophilized powder for research use only.
In published in vitro and preclinical research, DSIP has been studied in connection with delta-frequency EEG activity in animal models and with neuroendocrine signaling, including co-localization with pituitary mediators and interactions involving the hypothalamic-pituitary-adrenal (HPA) axis. These studies are conducted in cell-culture and animal research models. The findings derive from laboratory research and do not describe or imply any effect, benefit, or use in humans or animals.
Published literature has examined DSIP across a range of cell-culture and animal research models relating to neuropeptide and neuroendocrine signaling biology. These reports reflect controlled laboratory conditions only and do not translate to dosing, treatment, or applications in any other context. Its mechanism is studied alongside related research compounds such as Selank, Semax, and Pinealon.
For further reading, see published research on DSIP on PubMed.
Product Specifications
| CAS Number | 62568-57-4 |
| PubChem CID | 68816 |
| Molecular Formula | C₃₅H₄₈N₁₀O₁₅ |
| Molecular Weight | ~848.8 g/mol |
| Amino Acid Count | 9 |
| Sequence | WAGGDASGE (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu) |
| Synonyms | Delta Sleep-Inducing Peptide, Emideltide |
| Purity | ≥99% by HPLC | COA available |
| Physical Form | Lyophilized powder |
| Storage Conditions | Store at −20°C; protect from light and moisture |
COA / HPLC / MS
COA / HPLC / MS
3RD PARTY TESTING
3RD PARTY TESTING
Storage
Storage Instructions:
All of our products are manufactured using the Lyophilization (Freeze Drying) process, which ensures that our products remain 100% stable for shipping for up to 3-4 months.
Once the peptides are reconstituted (mixed with bacteriostatic water), they must be stored in the fridge to maintain stability. After reconstitution, the peptides will remain stable for up to 30 days.
Lyophilization is a unique dehydration process, also known as cryodesiccation, where the peptides are frozen and then subjected to low pressure. This causes the water in the peptide vial to sublimate directly from solid to gas, leaving behind a stable, crystalline white structure known as lyophilized peptide. The puffy white powder can be stored at room temperature until you’re ready to reconstitute it with bacteriostatic water.
Once peptides have been received, it is imperative that they are kept cold and away from light. If the peptides will be used immediately, or in the next several days, weeks or months, short-term refrigeration under 4C (39F) is generally acceptable. Lyophilized peptides are usually stable at room temperatures for several weeks or more, so if they will be utilized within weeks or months such storage is typically adequate.
However, for longer term storage (several months to years) it is more preferable to store peptides in a freezer at -80C (-112F). When storing peptides for months or even years, freezing is optimal in order to preserve the peptide’s stability.
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