- HPLC purity ≥99%, with a COA for each lot on request
- Certificate of analysis tied to your lot number
- Tracked EU delivery, dispatched the next working day
DSIP (Delta Sleep-Inducing Peptide)
Nonapeptide researched in sleep architecture, stress and neuroendocrine studies
In stock2 formats availableCAS 62568-57-4
€55Range €55 – €97
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Ask about this listing or request its COA- 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
For laboratory research use only. Sold exclusively for in-vitro laboratory research by qualified professionals. Not for human or veterinary use, and not a medicine, food, cosmetic or dietary supplement. Terms and Conditions
Overview
Key facts
DSIP (delta sleep-inducing peptide) is a nine-residue peptide — Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu — with a molecular weight of 848.81 g/mol.
- 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)
- Purity
- ≥99% by HPLC; lot-matched COA available
- Form
- Lyophilized white powder in a sealed glass vial
- Storage
- −20 °C, protected from light and moisture
- Available sizes
- 5 mg · 10 mg
For research use only. Not for human consumption.
DSIP (delta sleep-inducing peptide) is a nine-residue peptide — Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu — with a molecular weight of 848.81 g/mol. Schoenenberger and Monnier first isolated it in the 1970s from the cerebral venous blood of rabbits kept in electrically induced delta-wave sleep, which is where both its name and its long-standing link to sleep-architecture research come from.
Research on this nonapeptide includes EEG recording of delta activity and sleep-architecture analysis, work on corticotropin and the stress axis, thermoregulation and withdrawal models — much of it European and concentrated in the twenty years after its discovery. Interpreting results has always been complicated by the short plasma persistence reported for DSIP. That fragility affects day-to-day handling more than a storage table implies: keep solutions at 2–8 °C, divide them into aliquots instead of thawing repeatedly, and prepare them shortly before use, since the aspartate-glycine pair and the N-terminal tryptophan both give the peptide easy ways to degrade in water. Vials come in 5 mg and 10 mg; multi-arm studies usually opt for the larger size so that the entire study uses one lot number.
What sets this listing apart
DSIP (Delta Sleep-Inducing Peptide) – vial, 5/10 mg. Lyophilized white powder in a sealed glass vial. Other DSIP listings differ in format, fill or combination partners; the specification and COA always refer to the listing you order.
Same compound, other listings
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 the abbreviation DSIP mean?
Delta sleep-inducing peptide. The name recalls how it was found: in the 1970s scientists extracted it from rabbit cerebral venous blood during electrically triggered delta-wave sleep, and that association has guided its research ever since.
Is DSIP tested by an independent laboratory?
Yes. Each lot's purity is measured by reversed-phase HPLC and its identity verified by mass spectrometry; on request you receive the certificate for your batch, stating purity, observed mass and date of analysis.
Which vial sizes can I choose?
5 mg and 10 mg lyophilised vials. Studies with multiple time points or arms typically choose 10 mg, so the complete series runs on a single lot number and a single certificate.
How should I handle DSIP after reconstitution?
Keep it cold (2–8 °C) and dark, and make working dilutions just before you need them. Because the peptide is reported to be short-lived in biological fluids, cold handling and single-use aliquots are routine, not optional extras.
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