In Stock
HPLC Purity≥99%
Tested byJanoshik Analytical
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4.4 / 5
Trustpilot⚠ Research Use Only
Not for human consumption, veterinary use, or clinical administration. Sold exclusively to qualified laboratories and researchers for in-vitro study.
DSIP, or Delta Sleep-Inducing Peptide, is a nonapeptide first isolated from rabbit cerebral venous blood in the 1970s. It's one of the longest-standing compounds in sleep neuroscience research — its original discovery was tied to observations of slow-wave sleep induction in animal models, which prompted decades of follow-up investigation into its role in sleep architecture and neuroendocrine function.
Research has explored DSIP's involvement in the regulation of sleep-wake cycles, including potential interactions with hypothalamic and limbic signaling pathways. Studies have also investigated its relationship with stress response systems, suggesting it may act as a modulatory signal in both neuroendocrine and stress-adaptive contexts. Its endogenous nature and apparent receptor interactions make it a subject of ongoing interest in peptide neuroscience.
Beyond sleep research, DSIP has been investigated in models examining antioxidant activity and peptide signaling under physiological stress conditions. Researchers working in neurophysiology, chronobiology, and stress biology have all drawn on DSIP as a research tool over the years.
myPEPT supplies DSIP at ≥99% verified purity, with a Certificate of Analysis from independent third-party lab testing. All batches are lyophilized and shipped across the EU in research-grade condition.
What researchers should know: DSIP is supplied for laboratory research use only. It is not approved for human consumption and should not be used outside of a controlled research setting. Always handle in accordance with your institution's safety and compound management protocols.
Supplier SKUMYPDS
Specification10 MG
Purity≥99%
Molecular Weight848.81 Da
Molecular FormulaC₃₅H₄₈N₁₀O₁₅
CAS Number62568-57-4
Amino Acid Count9
Amino Acid SequenceTrp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu
Storage InstructionsStore at 2–8°C protected from light and moisture. For long-term storage, keep at −20°C. Once reconstituted, use within 14–30 days stored at 2–8°C.
Shelf Life24 months (lyophilized, 2–8°C); 36 months (lyophilized, −20°C)
Supplier SKUMYPDS
Specification10 MG
Purity≥99%
Molecular Weight848.81 Da
Molecular FormulaC₃₅H₄₈N₁₀O₁₅
CAS Number62568-57-4
Amino Acid Count9
Amino Acid SequenceTrp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu
Storage InstructionsStore at 2–8°C protected from light and moisture. For long-term storage, keep at −20°C. Once reconstituted, use within 14–30 days stored at 2–8°C.
Shelf Life24 months (lyophilized, 2–8°C); 36 months (lyophilized, −20°C)
HPLC + Mass-Spec Verified
Third-party tested each batch.
24-hour EU Dispatch
Cold-packed from Antwerp warehouse. Typical 2–5 day delivery.
Discreet, Secure Checkout
iDEAL, SEPA, card & crypto. No product references on invoice.
COA on Every Order
Certificate of Analysis matched to your exact lot, by email.
Frequently asked
7 questionsHow fast is delivery and which carriers do you use?
Orders placed before 16:00 CET ship the same business day from the Netherlands via DPD or PostNL. EU-wide delivery typically takes 2–5 working days, fully tracked. Every parcel ships in plain, unbranded packaging with no peptide-related markings visible.
Which payment methods do you accept?
We accept iDEAL (Netherlands), Bancontact (Belgium), PayPal, Klarna pay-later, SEPA instant bank transfer, and Visa/Mastercard credit and debit cards. All payments are processed through PCI-DSS-compliant European processors. Bank transfer and card orders ship within 24 hours of payment confirmation.
How do you verify peptide purity?
Every batch is HPLC-tested to 99% purity or higher by an independent third-party laboratory, with identity confirmed by mass spectrometry. The batch-specific Certificate of Analysis is published on every product page and delivered with the order.
Are research peptides legal to buy in the Netherlands and EU?
Yes — when sold and purchased strictly for in-vitro laboratory research. Research peptides on my\PEPT.eu are not approved, marketed or intended for human or veterinary use, medical diagnosis or therapeutic application. By placing an order you confirm research-only intent and accept responsibility for compliance with local regulations.
How should research peptides be stored?
Lyophilized (freeze-dried) peptides keep up to 24 months at −20 °C in a sealed vial. Once reconstituted in bacteriostatic water, store at 2–8 °C and use within 28 days. Avoid repeated freeze-thaw cycles and direct sunlight.
What is DSIP as a research peptide?
DSIP (Delta Sleep-Inducing Peptide) is a neuropeptide of 9 amino acids (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu) with a molecular weight of approximately 849 Da. It was first isolated from rabbit cerebral venous blood and is studied in laboratory research for its interaction with opioid and serotonin receptor pathways in cell assay systems. DSIP is sold for in-vitro research use only and has not been evaluated by the EMA or FDA for human use.
How should DSIP be stored?
Lyophilized DSIP should be stored at −20 °C in a sealed vial, away from light. After reconstitution in bacteriostatic water or sterile buffer for laboratory assay use, refrigerate at 2–8 °C and use within 28 days. Avoid repeated freeze-thaw cycles. Supplied for in-vitro research use only.
⚠
For research use only. This product is intended exclusively for in-vitro research and laboratory applications. Not approved for human or animal consumption, medical treatment, or therapeutic use.
