15% off all orders — use code PEPTA15

Research Use Only — Not for Human Consumption. This compound is sold exclusively for in vitro laboratory research by qualified professionals.

PeptaPeptides
DSIP
5 mg
99.0% PurityFor Research Use Only
RUO — Research Use Only
Not for human, veterinary, or clinical use
RUO
Neuropeptide

DSIP

Delta Sleep-Inducing Peptide

(134 reviews)
99.0% Purity
$54.99per 5 mg · lyophilized

Delta Sleep-Inducing Peptide (DSIP) is a nonapeptide first isolated from the cerebral venous blood of rabbits in a state of naturally occurring sleep. Research has examined its roles in sleep stage modulation, stress axis regulation, and nociception. For research use only — not for human consumption.

3rd-Party HPLC Verified
Lot-Specific Certificate
Cold-Chain Shipping
Chemical Information
Molecular FormulaC₃₅H₄₈N₁₀O₁₅
Molecular Weight848.81 g/mol
CAS Number62568-57-4
FormLyophilized Powder
Storage-20°C, dry & dark
Purity (HPLC)≥ 99.0%
Amino Acid SequenceTrp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu
1
22 in stock
Not for Human Consumption · For Research Purposes Only
256-bit SSL
Cold-Chain Shipping
Lot-Specific CoA
ISO 9001 Facility
Independent Verification

Third-Party Tested. Every Lot.

Every batch of DSIP undergoes independent HPLC and mass spectrometry analysis through an accredited third-party laboratory before it is released for sale. No exceptions. No internal-only certificates.

RP-HPLC Analysis

Every lot measured by reverse-phase HPLC. DSIP consistently achieves 99.0%+ purity across batches.

ESI Mass Spec

Electrospray ionization mass spectrometry confirms exact molecular weight and rules out structural isomers or impurities.

Lot-Specific CoA

Your Certificate of Analysis references your exact lot number with actual chromatogram data — not a generic template.

Research Context

Theoretical Research Analysis

All research information below reflects published preclinical literature only. This product is not for human use, consumption, or clinical application of any kind.

Sleep stage and architecture modulation
Neuroendocrine stress hormone regulation
Circadian rhythm research
Nociception and pain signaling

DSIP research has evolved from sleep-promoting characterization into a broader neuroendocrine role. Studies document dose-dependent effects on slow-wave sleep architecture and pituitary hormone secretion.

Sequence Information

Amino acid sequence:

Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu

Molecular Formula

C₃₅H₄₈N₁₀O₁₅

Molecular Weight

848.81 g/mol

FDA Disclaimer: The information and statements contained on this website have not been evaluated by the United States Food and Drug Administration. The products offered by PeptaPeptides LLC and the statements made herein are not intended to diagnose, treat, cure, or prevent any disease or medical condition. PeptaPeptides LLC functions solely as a chemical supplier and raw material provider. PeptaPeptides LLC is not a compounding pharmacy, nor does it constitute a chemical compounding facility as that term is defined under Section 503A of the Federal Food, Drug, and Cosmetic Act. PeptaPeptides LLC is likewise not an outsourcing facility as defined under Section 503B of the Federal Food, Drug, and Cosmetic Act. All compounds and materials offered are provided exclusively for laboratory research, scientific analysis, and in vitro use by qualified researchers and institutions. None of the products available through PeptaPeptides LLC are intended for, approved for, or suitable for human consumption in any form.