DSIP 5mg
DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring nonapeptide (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu) first isolated from cerebral venous blood during slow-wave sleep. It is studied for its role in sleep architecture and neuroendocrine modulation.
Research describes DSIP crossing the blood-brain barrier and modulating delta-wave (slow-wave) EEG activity, as well as influencing the hypothalamic-pituitary axis and corticotropin/stress-hormone responses. Additional studies examine antioxidant and stress-protective properties in neuronal models.
Supplied as a lyophilised powder strictly for in-vitro and laboratory research use.
| SKU | ONX-DSIP-5 |
|---|---|
| Purity | 99%+ |
| Molecular weight | 848.8 Da |
| Molecular formula | C35H48N10O15 |
| CAS number | 62568-57-4 |
| Amino-acid sequence | WAGGDASGE |
| Amino-acid count | 9 |
| Appearance | White to off-white lyophilised powder |
| Solubility | Reconstitutes in bacteriostatic water |
| Storage | Store at 2–8 °C, protected from light |
| Shelf life | 36 months at 2–8 °C |
Related research notes
References are provided for scientific background only. They describe preclinical and laboratory research and do not constitute medical, therapeutic, or efficacy claims. This product is sold strictly for research use.
What is DSIP?
DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring nonapeptide (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu) first isolated from cerebral venous blood during slow-wave sleep. It is studied for its role in sleep architecture and neuroendocrine modulation.
Where can a laboratory buy DSIP in the EU?
Onyx Peptides supplies DSIP for laboratory research across the European Union. We are operated by Vexio j. s. a. (IČO 54214530) in Slovakia and dispatch from within the EU, so there is no customs entry, no import duty and no border hold. Orders placed before 16:00 CET ship the same day, and shipping is free above €100.
How do I verify the batch of DSIP I receive?
Each vial carries a batch number. Ask us for the Certificate of Analysis of the batch currently in stock — before you order, not after — and check that the batch number on the certificate matches the one printed on the vial. The analysis is performed by Janoshik Analytical, an independent laboratory in Prague, which will confirm a report it issued if you contact them with its identifier.
How is purity verified?
Every batch is independently tested by Janoshik Analytical using HPLC and Mass Spectrometry. A batch-specific Certificate of Analysis — also covering endotoxins and heavy metals — is available on request.
How fast is delivery?
We dispatch from within the EU, same day on orders placed before 16:00 CET. EU delivery typically takes 1–3 business days.
What payment methods do you accept?
We accept bank transfer (SEPA), including SEPA instant payments which usually arrive within seconds. Your order ships as soon as the transfer clears.
How should this be stored?
Store at 2–8 °C, protected from light. Once reconstituted, keep refrigerated and use within 30 days.
What is the intended use?
All products are supplied strictly for in-vitro laboratory and research use only. They are not for human consumption, veterinary, or clinical use.
