

DSIP
Delta Sleep-Inducing Peptide. Supplied in 5 mg vials, lyophilised and ready to reconstitute.
2 more vials to save 5%
Peptides ship as dry powder — you’ll need this to reconstitute the vial.
For laboratory research use only. Not for human or animal consumption, and not a drug, food, or cosmetic. Sold to qualified researchers and institutions.
About DSIP
- Residues
- 9
- Molecular weight
- 848.8 g/mol
- CAS number
- 62568-57-4
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 induced sleep. In research it is examined as a putative neuromodulatory peptide with reported interactions with circadian, neuroendocrine and stress-response signalling, though its endogenous receptor remains incompletely characterised.
For laboratory research use only. Not for human or veterinary use.
Specifications
- Sequence
- WAGGDASGE
- Molecular formula
- C35H48N10O15
- Molecular weight
- 848.8 g/mol
- CAS number
- 62568-57-4
- Form
- Lyophilised powder
- Appearance
- White to off-white powder
- Solubility
- Soluble in bacteriostatic or sterile water
- Storage
- Store the lyophilised powder at -20°C, protected from light. Refrigerate reconstituted material at 2 to 8°C and use within its stability window.
- Purity
- 99.3%
- Lot
- PX-2659-A
- Test date
- May 2026
- Testing lab
- third-party
- Methods
- HPLC, LC-MS/MS
Certificate
Handling and storage
Reconstitute with bacteriostatic or sterile water. Store the lyophilised powder at -20°C, protected from light; refrigerate reconstituted material at 2 to 8°C. Handle under standard laboratory conditions.
Literature
- Delta-sleep-inducing peptide (DSIP): a reviewGraf MV, Kastin AJ · Neuroscience & Biobehavioral Reviews · 1984
Common questions about DSIP
- 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 induced sleep.
- How is DSIP supplied?
- DSIP is supplied as a lyophilised (freeze-dried) powder in 5 mg vials, for laboratory research use only.
- How should DSIP be stored and handled?
- Reconstitute with bacteriostatic or sterile water. Store the lyophilised powder at -20°C, protected from light; refrigerate reconstituted material at 2 to 8°C. Handle under standard laboratory conditions.
- Has this batch of DSIP been independently tested?
- Yes. Lot PX-2659-A was tested at 99.3% by an independent laboratory. The full certificate of analysis is published and searchable by lot code on the verify page, before and after purchase.
- Is DSIP for human use?
- No. DSIP is supplied strictly for in vitro laboratory research. It is not for human or animal consumption, and is not a drug, food, or cosmetic.
Researchers also study


N-Acetyl Selank Amidate

N-Acetyl Semax Amidate

P-21
Reconstitution
A measurement aid for laboratory handling. For research use only.
Need the syringe mark, a round-number draw, or a U-40 reading? Open the full calculator with this 5 mg vial loaded.