DSIP — Research Peptide Bulk Supply
Also known as: Delta Sleep-Inducing Peptide, DSIP nonapeptide, Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu
DSIP (delta sleep-inducing peptide) — 9-residue neuroregulatory research peptide. Wholesale bulk, COA/HPLC-MS, private-label.
Bulk Catalog Specifications
- Lyophilized powder, ≥98% purity by HPLC-MS
- Molecular weight: 848.8 g/mol (nonapeptide)
- Available in research vial sizes (5 mg) and bulk aliquot programs
- COA with HPLC and mass spectrometry data per lot
- Cold-chain shipping and storage documentation
- Private-label and white-label bulk inquiry available
Scientific Identifiers
| Sequence | Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu (WAGGGASGE — note: official sequence is WAGGDASGE) |
|---|---|
| Residue count | 9 |
| Molecular formula | C35H48N10O15 |
| Molecular weight | 848.8 g/mol |
| PubChem CID | 68816 |
Research Mechanism Summary
Delta Sleep-Inducing Peptide (DSIP) is an endogenous nonapeptide (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu) first characterized in the 1970s; it is released from hypothalamic nerve endings upon depolarization and inactivated by membrane-associated puromycin-sensitive aminopeptidase, consistent with a neuropeptide-like neuromodulator role (https://pubmed.ncbi.nlm.nih.gov/8474631/). Research demonstrates that DSIP inhibits hypothalamic somatostatin (SRIF) release in a dose-dependent manner (maximally at 10⁻⁸ M) via a dopaminergic mechanism (pimozide-reversible), suggesting a role in disinhibiting GH pulsatility during sleep (https://pubmed.ncbi.nlm.nih.gov/2886936/). Additional research characterizes multiple physiological effects including thermoregulation, blood pressure, and pain threshold modulation that appear circadian cycle-dependent (https://pubmed.ncbi.nlm.nih.gov/3286557/).
For Research Use Only. Not for human or veterinary use. Page copy reflects published preclinical and biochemistry literature only and does not constitute dosage, administration, treatment, or therapeutic guidance.
Catalog Context
DSIP is supplied as a research-grade lyophilized peptide catalog item under the Neuropeptide & Cognitive Research Peptides family. PeptideDistro.com lists this entry for qualified research and wholesale buyers; pricing, MOQ, and documentation packets are reviewed during account intake. Page copy is framed exclusively around mechanism literature, molecular identifiers, and bulk catalog specifications.
Wholesale & Documentation
PeptideDistro.com supplies DSIP in research-grade lyophilized format with COA, HPLC, and mass spectrometry data per lot. Pricing, MOQ, and label coordination are reviewed during account intake.