≥99% by HPLC; lot-matched COA available
Lot-matched certificate of analysis
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DSIP (Delta Sleep-Inducing Peptide)

Nonapeptide studied in sleep architecture, stress and neuroendocrine research

In stock·2 formats available·CAS 62568-57-4

$55Range $55 – $97

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5 mg$5510 mg$97

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FormLyophilized white powder in a sealed glass vial
Mol. weight848.81 g/mol
Research areasEEG delta activity, sleep architecture, stress and corticotropin studies, thermoregulation, withdrawal models

Supplied for laboratory research use only. Not for human or veterinary use, and not intended to diagnose, treat, cure or prevent any disease.

Overview

DSIP, or delta sleep-inducing peptide, is a nonapeptide with the sequence Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu and a molecular weight of 848.81 g/mol. It was first isolated in the 1970s by Schoenenberger and Monnier from the cerebral venous blood of rabbits during electrically induced delta-wave sleep — an origin that gave the peptide both its name and its long association with sleep-architecture research.

Specifications

Identity

CAS number: 62568-57-4
Molecular formula: C35H48N10O15
Molecular weight: 848.81 g/mol
Amino acid sequence: Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu (WAGGDASGE)
Peptide class: Endogenous nonapeptide (delta sleep-inducing peptide)

Supply & purity

Form: Lyophilized white powder in a sealed glass vial
Purity: ≥99% by HPLC; lot-matched COA available
Available sizes: 5 mg, 10 mg
Solubility: Soluble in bacteriostatic water and sterile water

Handling & storage

Storage (lyophilized): −20 °C, protected from light and moisture
Storage (reconstituted): 2–8 °C; aliquot to avoid repeated freeze-thaw

Additional detail

Research areas: EEG delta activity, sleep architecture, stress and corticotropin studies, thermoregulation, withdrawal models
Stability note: Short plasma half-life reported; keep solutions cold and freshly prepared

Questions about DSIP (Delta Sleep-Inducing Peptide)

What does DSIP stand for?

Delta sleep-inducing peptide. The name reflects its discovery: researchers isolated it from the cerebral venous blood of rabbits during electrically induced delta-wave sleep in the 1970s, and the delta-wave association has shaped its research literature ever since.

Is DSIP third-party tested?

Yes. Every lot is analyzed by reversed-phase HPLC for purity and confirmed by mass spectrometry for identity, with a lot-matched certificate of analysis available on request showing purity, observed mass and analysis date for your specific batch.

What sizes are offered?

DSIP is available as 5 mg and 10 mg lyophilized vials. Studies with several time points or arms usually take the 10 mg vial so that the whole series stays on one lot number and one certificate of analysis.

How should reconstituted DSIP be handled?

Keep it at 2–8 °C, protected from light, and prepare working dilutions close to the time of use. Given the short reported stability of this peptide in biological fluids, cold handling and single-use aliquots are standard practice rather than optional refinements.

Can DSIP be taken for sleep?

No. This product is supplied for laboratory research use only. It is not a sleep aid, drug or supplement, has no approval for human or veterinary administration, and must not be used outside a controlled research protocol run by qualified personnel.