DSIP
Delta Sleep-Inducing Peptide - Delta sleep-inducing peptide studied for sleep architecture.
DSIP is a naturally occurring nonapeptide studied for its association with delta-wave sleep, stress modulation and neuroendocrine research.
DSIP is one of the older peptides in sleep research, first described for its association with slow-wave sleep, and its precise mechanism remains incompletely understood. It is studied more as a neuroendocrine and circadian probe than as a defined receptor ligand.
DSIP specifications
- CAS number
- 62568-57-4
- Molecular formula
- C35H48N10O15
- Molecular weight
- 848.81 g/mol
- Sequence
- Delta-sleep-inducing nonapeptide
- Residues
- 9 residues (WAGGDASGE)
- Presentation
- Lyophilized powder
- Documented purity
- 99.55% by HPLC
- Available sizes
- 5mg (out of stock), 10mg ($55)
- Archived COA lots
- 3
- Intended use
- Laboratory research use only. Not for human or veterinary use.
Studied pathways
- Sleep signaling - Studied for its relationship to slow-wave sleep patterns and circadian research.
Reported mechanisms in the literature
- Sleep signaling - A naturally occurring nonapeptide studied for its association with delta-wave (slow-wave) sleep patterns and stress/neuroendocrine modulation. (Schoenenberger & Monnier)
What DSIP is researched for
- Slow-wave sleep - Studied for its association with delta-wave sleep architecture in neuroendocrine models. (Schoenenberger & Monnier)
- Neuroendocrine - Investigated for stress-axis and circadian modulation in preclinical research. (Preclinical literature)
DSIP certificates of analysis on file
Every lot below was tested by an independent laboratory and the full report is published as a PDF. Purity is shown exactly as the report states it. The same records are searchable in the COA library and can be checked on the lot verification page.
| Lot | Tested | Size | Laboratory | HPLC purity | Identity | Certificate |
|---|---|---|---|---|---|---|
| DSIP-101926-10 | 22 Oct 2026 | 10mg | ILS Laboratories | 99.17% | Confirmed (HPLC retention time) | COA PDF |
| AJ4AUX | 12 Aug 2026 | 10mg | Freedom Diagnostics | 99.12% | Confirmed (LC-MS/MS) | COA PDF |
| DSIP12302025-J | 31 Dec 2025 | 5mg | Freedom Diagnostics | 99.55% | Confirmed (LC-MS/MS) | COA PDF |
DSIP sizes and pricing
| Size | Price | Per mg |
|---|---|---|
| 5mg | $30 | $6.00 per mg |
| 10mg | $55 | $5.50 per mg |
Published literature on DSIP
The mechanisms above trace to peer-reviewed studies indexed on PubMed. These are independent third-party publications, not Aspect Peptides claims. Browse indexed research on PubMed.
DSIP frequently asked questions
What is DSIP?
Delta-sleep-inducing peptide is a naturally occurring nonapeptide studied for its relationship to delta-wave sleep and neuroendocrine regulation.
Is DSIP approved for human use?
No. It is a research material only, with preclinical data only. It is not a medicine or sleep aid.
What is it researched for?
Sleep architecture, stress-axis modulation and circadian research in animal models.
Documented to 99.55% purity by HPLC · third-party COA every lot · from $30 · For laboratory research use only.