What is DSIP?
DSIP (Delta Sleep-Inducing Peptide (nonapeptide)) is a 9-amino acid synthetic nonapeptide. Nonapeptide originally isolated from rabbit cerebral venous blood during sleep. Modulates sleep architecture by promoting delta wave (slow-wave) activity, interacts with opioid receptors and stress response systems, and demonstrates antioxidant activity in some models. Full mechanistic pathway incompletely characterised.
Research Applications
Sleep Architecture
Delta wave (slow-wave sleep) promotion and sleep stage modulation
Opioid Receptor Interaction
Opioid pathway effects and stress response modulation
Circadian Biology
Sleep-wake cycle research and circadian phase studies
HPA Axis
Stress response and cortisol modulation research
Antioxidant Models
ROS reduction and neuroprotective activity studies
Quick Specs
| Form |
C₇₇H₁₂₄N₂₂O₂₀ |
| Purity |
≥99% by HPLC — every batch |
| CAS Number |
62568-57-4 |
| Molecular Weight |
MS molecular weight confirmed — every batch |
| Specification |
≥99% by HPLC — every batch |
| Shelf Life |
24 months unopened |
| Storage |
-20°C sealed | 2–8°C reconstituted (2–4 weeks) |
| Manufacture |
In-house Fmoc SPPS — Qingdao, China |
| Brand |
Asia |
Certificate of Analysis (COA)
Frequently Asked Questions
How do I reconstitute this peptide?
Add 1–2mL bacteriostatic water to the lyophilized DSIP (delta sleep-inducing peptide) vial. DSIP is a nonapeptide that dissolves readily to a clear solution. Swirl gently.
How should this peptide be stored?
Store lyophilized at −20°C. Reconstituted: 2–8°C for up to 28 days. DSIP is a small, water-soluble nonapeptide with good stability in aqueous solution under refrigeration.
What purity is this QSC compound and how is it verified?
QSC DSIP is ≥99% HPLC pure with MS-confirmed nonapeptide identity on every batch. COA is published on the product page and verifiable at verify.janoshik.com.
🧪 Peptide Research Tools: Use QSC's free
peptide calculators — reconstitution, BAC water, dosing, half-life, and mixing charts.
🌍 Domestic shipping: 🇺🇸 USA 5–7 days
🌏 International shipping: 7–14 days
⚠️ RESEARCH USE ONLY — NOT FOR HUMAN CONSUMPTION
QSC products are strictly for in vitro and in vivo laboratory research.
Safety & Handling
🚫
Not for Human Use
These compounds are for research only.
🥽
PPE Required
Always use appropriate protective equipment.
❄️
Storage Compliance
Follow product-specific storage conditions.
Product-Specific Storage
-20°C sealed | 2–8°C reconstituted (2–4 weeks)
