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DSIP

DSIP

$55$90

Delta sleep-inducing peptide (DSIP) is a naturally occurring nonapeptide — a chain of nine amino acids — with the sequence Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu. It has a molecular weight of 848.81 g/mol and the formula C35H48N10O15 (CAS 62568-57-4). First isolated in 1977 from rabbit cerebral venous blood, DSIP is classified as amphiphilic, meaning it contains both water-attracting and water-repelling regions. The tryptophan residue at its N-terminus provides a characteristic UV absorbance signature used for laboratory identification. DSIP is a low-molecular-weight amphiphilic nonapeptide — the selective membrane that separates circulating blood from brain tissue. It appears as a white lyophilized powder that is soluble in water. This product is strictly for research purposes only.

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Certificate of Analysis

Independent laboratory testing confirms purity and composition of this research peptide.

+ ENDO PASSED
99.99%
Purity
A1007
Batch
June 2026
Date
View Certificate →

Overview

Delta sleep-inducing peptide (DSIP) is a naturally occurring nonapeptide — a chain of nine amino acids — with the sequence Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu. Its molecular formula is C35H48N10O15, with a molecular weight of 848.81 g/mol (CAS 62568-57-4). DSIP was first isolated in 1977 from the cerebral venous blood of rabbits during induced sleep by a Swiss research group.

The peptide is classified as amphiphilic, meaning it has both water-attracting and water-repelling regions, a property related to its mixed hydrophilic and hydrophobic amino acid residues. The tryptophan residue at the N-terminus gives it a characteristic UV absorbance profile used for laboratory identification. DSIP is notable for its low molecular weight and amphiphilic structure — the selective membrane separating circulating blood from brain tissue. In its research-grade form, it appears as a white lyophilized powder that dissolves in water.

This product is strictly for research purposes only. Not approved for human or animal use.

PubChem Reference: View compound profile on NIH PubChem

Key Characteristics

MOLECULAR PROFILE

Formula: C35H48N10O15

Weight: 848.81 g/mol

CAS: 62568-57-4

Structure: Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu

PHYSICAL PROPERTIES

Form: White lyophilized powder

Solubility: Water-soluble

BBB Penetration: Crosses blood-brain barrier

Storage: Keep refrigerated 36‑46 °F (2‑8 °C)

Size: 10mg, 5mg

SKU: AXIOM-DSIP

Categories: Single Peptides

Tags: Research Chemical

This product is strictly for research purposes only. Not for human or animal consumption.

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The statements on this website have not been evaluated by the U.S. Food and Drug Administration. The products and information provided by Axiom Research are not intended to diagnose, treat, cure, or prevent any disease. Axiom Research is a research chemical supplier. We are not a compounding pharmacy or compounding facility as defined under Section 503A of the Federal Food, Drug, and Cosmetic Act, nor are we an outsourcing facility as defined under Section 503B.

All products are sold for research, laboratory, or analytical purposes only, and are not for human consumption.

DSIP — Axiom Research