DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring neuropeptide composed of nine amino acids that was first isolated from the cerebral venous blood of rabbits in 1977. Research shows DSIP promotes delta-wave sleep (the deepest, most restorative sleep phase), normalizes disrupted sleep architecture, enhances stress resilience, and modulates corticotropin and cortisol levels. Unlike conventional sleep medications, DSIP works by normalizing sleep patterns rather than inducing sedation. It has also shown promise in pain management and withdrawal symptom alleviation. Available in high-purity lyophilized form for research institutions and sleep medicine research programs.
| Sequence | Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu |
| Molecular Formula | C35H48N10O15 |
| Molecular Weight | 848.81 g/mol |
| Purity | ≥98% (HPLC) |
| Form | Lyophilized powder |
| Storage | -20°C |
| CAS | 62568-57-4 |
According to comprehensive reviews in the Journal of Peptide Science, synthetic therapeutic peptides represent one of the fastest-growing segments of the pharmaceutical industry.
Research published in Trends in Pharmacological Sciences (2023) highlights the importance of peptide purity exceeding 99% for reproducible preclinical research outcomes.
Neuropeptide for sleep normalization, stress resilience enhancement, and circadian rhythm regulation research.
We supply DSIP (Delta Sleep-Inducing Peptide) at ≥98% (HPLC) purity. Higher purity grades are available for pharmaceutical applications upon request.
Minimum order quantities for wholesale DSIP (Delta Sleep-Inducing Peptide) depend on the quantity and purity grade required. Contact our sales team for specific pricing and MOQ information.
DSIP (Delta Sleep-Inducing Peptide) should be stored at -20°C in a desiccated environment. Proper cold-chain shipping is maintained for all deliveries.
Every batch includes a comprehensive Certificate of Analysis with HPLC purity data (≥99%), mass spectrometry confirmation, amino acid analysis, endotoxin testing (<0.5 EU/mg), and residual solvent analysis per ICH Q3C guidelines.
In-stock peptides are dispatched within 48 hours of order confirmation. International delivery takes 5–7 business days via temperature-controlled shipping. Express 2–3 day options available. Our on-time delivery rate is 99.2%.
Yes. Dr. Peptides provides Drug Master File (DMF) documentation, Certificates of Origin, MSDS/SDS in multiple languages, and stability data packages compliant with ICH guidelines for regulatory submissions.
Dr. Peptides offers a 100% money-back quality guarantee. If any product fails to meet the purity specifications stated on its Certificate of Analysis, we provide a full replacement or refund within 48 hours of claim receipt.
All shipments use pharmaceutical-grade insulated packaging with qualified gel packs maintaining 2–8°C for up to 96 hours. Each package includes a temperature data logger for verification upon receipt, per WHO guidelines for temperature-sensitive pharmaceuticals.
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