DSIP 5mg

Name: DSIP 5mg
Brand: Isla Longevity
SKU: DSIP-5MG
Price: 34.99 USD
Availability: InStock

$34.99

Nonapeptide isolated from cerebral venous blood during slow-wave sleep; no receptor has been identified. Research use only.

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Lab certificate · COA1036799.8% purity · Bioviridian · Jul 2026

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SKU: DSIP-5MG Category: Neuro & Melanocortin Lab certificates: View in the COA Bank

Read the research guide: DSIP 5mg

Product Overview

Identity

Delta sleep-inducing peptide is the nonapeptide Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu, isolated in 1977 from the cerebral venous blood of rabbits during electrically induced slow-wave sleep and named for the EEG band it was associated with.

Molecular target

None identified. Nearly fifty years after isolation no DSIP receptor has been cloned and no consensus binding site established, which is the single most important constraint on interpreting the literature around it.

Signalling pathway

Reported associations with delta-band EEG power, with hypothalamic-pituitary-adrenal axis output and with opioid and GABAergic transmission are correlative. Without a defined receptor there is no established transduction pathway to describe, and competing groups have proposed carrier-mediated and non-specific mechanisms.

Research context

Rabbit, rat and cat EEG studies, largely published between the late 1970s and the 1990s. Results have been inconsistent between laboratories, and the compound is used today mainly as a reference material in sleep-neurochemistry work.

Specification

Form: lyophilised powder, sealed vial
Purity: verified by high-performance liquid chromatography with mass spectrometric confirmation
Analysis: third-party tested, full report published against the batch number on the vial
Storage: 2-8 °C

Handling: See our step-by-step reconstitution protocol, and our guide to bacteriostatic water vs sterile water for choosing a diluent.

For laboratory research use only. Not for human or veterinary use.

Specifications

All certificates in the COA Bank →

FormatLyophilised powderSealed vial

Molecular formulaC₃₅H₄₈N₁₀O₁₅

Molecular weight848.8g/mol

CAS number62568-57-4

Endotoxin<0.05 EU/mlLAL test

Third-party analysis, by batch

5mg99.8%purity by HPLCBioviridian · Report COA10367 · Jul 2026View certificate

Reference: PubChem CID 68816, Delta sleep-inducing peptideIn-vitro laboratory research only. Not for human or veterinary use.

Important

ISLA-H20 sold separately
Syringes not included
Supplied as lyophilised powder
Third-party tested, every batch

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All products are supplied strictly for in-vitro laboratory research purposes only. Not for human consumption, medical, or veterinary use. Isla Longevity does not condone the use of peptides outside of controlled scientific research. By purchasing, you acknowledge that you are a qualified researcher or institution and are at least 21 years old.

? Details

Intended Use: Supplied for laboratory research purposes only. All peptides require reconstitution with ISLA-H20, sold separately.

Form: Lyophilised (freeze-dried) powder in a sealed sterile vial.

Storage: Store the vial in a cool, dry place away from direct light. Once reconstituted, keep refrigerated at 2–8°C and use within the recommended timeframe.

Solubility: Reconstitute with ISLA-H20. Avoid repeated freeze–thaw cycles to preserve integrity.

Testing: Every batch is independently analysed by Bioviridian for identity (LC-MS) and purity (HPLC), with the certificate published in our COA Bank.

Independent Lab Testing

Verified by Bioviridian

Certificates from our current batches. Every batch is analysed by an independent laboratory for identity (LC-MS) and purity (HPLC), and the full report is published in our COA Bank.