Delta Sleep-Inducing Peptide (DSIP) is a nonapeptide first isolated from rabbit cerebral venous blood. It exhibits multiple neuromodulatory actions including modulation of slow-wave sleep architecture, HPA axis stress responses, and antioxidant activity, making it a versatile tool for neuroendocrine research.
Research Applications:
- Sleep architecture and slow-wave (delta) sleep modulation studies
- HPA axis and corticotropin release regulation research
- Antioxidant and lipid peroxidation studies
- Pain perception and opioid receptor interaction research
- Stress response and anxiety models
Key Properties:
Sequence: Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu
Molecular Formula: C₃₅H₄₈N₈O₁₅
Molecular Weight: 848.8 Da
CAS: 62568-57-4
Product Specifications:
Purity: ≥98% (HPLC)
Form: Lyophilized Powder
Storage: −20 °C, protected from light
For research use only. Not for human consumption. Not for veterinary use. No medical or therapeutic claims are made. These statements have not been evaluated by the FDA.

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