Can I see the Certificate of Analysis before buying?

Yes. Ask us for the lot-matched COA before you order and we will send it, documenting identity, purity, and full analytical results.

What does 'Research Use Only' mean?

This product is supplied strictly for laboratory and research use only (RUO). It is not a drug, food, supplement, or cosmetic, is not approved by the FDA, and is not intended to diagnose, treat, cure, or prevent any disease, or for human or veterinary consumption.

How is it shipped and stored?

Orders ship from the United States with tracking, in plain packaging with no identifying labels on the outside. Store the lyophilized material at −20°C, protected from light and moisture.

CatalogDSIP

DSIP

Name: DSIP
Brand: United Peptides
SKU: DSIP-5MG
Price: 55 USD
Availability: InStock

Sleep/Stress

DSIP: delta sleep-inducing peptide for laboratory research. Third-party tested, 99%+ purity, COA available. Sizes: 5 mg.

$55.00

Per 5 mg · USD

Quantity

SKU DSIP-5MG

Third-party tested, ≥99% purity by HPLC and mass spectrometry
Lot-matched Certificate of Analysis available for every lot
Ships from the United States with tracking, in plain packaging

DSIP is a naturally occurring nonapeptide first isolated from rabbit cerebral venous blood. It is used in research on sleep architecture, stress-hormone regulation and circadian signaling.

Common research applications include:

Sleep and circadian research
Stress and cortisol-axis models
Neuromodulation studies

Specifications

Class: Delta sleep-inducing peptide
Form: lyophilized powder in a sealed glass vial
Available sizes: 5 mg
Purity: verified at 99% or higher by HPLC, identity confirmed by mass spectrometry
Testing: every lot is third-party tested, with a lot-matched Certificate of Analysis available on request
Manufactured in the USA
Storage: keep sealed, cool, dry and away from light; refrigerate after reconstitution

For laboratory research use only. This product is not for human or veterinary use, is not a drug, food or cosmetic, and is not intended to diagnose, treat, cure or prevent any disease.

Specification

Purity: ≥99% by HPLC · COA available
CAS Number: 62568-57-4
Molecular Formula: C35H48N10O15
Molecular Weight: 848.81
Amino Acid Count: 9
Sequence: Nonapeptide Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu (WAGGDASGE) with free N- and C-termini; originally isolated from cerebral venous blood of sleeping rabbits (full sequence per COA).
Synonyms: Delta Sleep-Inducing Peptide
Physical Form: Lyophilized powder
Solubility: Soluble in bacteriostatic water; consult the product COA for specific solvent recommendations.
Storage: Store lyophilized at -20°C; protect from light and moisture. Reconstitute with bacteriostatic water; store reconstituted material refrigerated and use per laboratory procedure.

Complete your setup

Lyophilized peptides need bacteriostatic water and a syringe to reconstitute. Add the essentials in one click.

DSIPIn your order

Reconstitution Solution — 30 mL$30.00Required

Reconstitution Kit$49.99

Total for 2 items$85.00

Answers

Frequently asked.

Yes. Every lot is independently third-party tested for identity and purity — ≥99% by HPLC and mass spectrometry — with a lot-matched Certificate of Analysis available on request for every lot.