A clear DSIP research vial on a coloured plaster ledge, with botanicals beside it

About this compound

Delta Sleep-Inducing Peptide is a nonapeptide first isolated in 1977 from the cerebral venous blood of rabbits, and named for the electroencephalographic phenomenon observed in the experiments that identified it.

Studied in

Sleep architecture
Circadian regulation
Neuropeptide research

Compound identity

Compound	DSIP
CAS number	62568-57-4
Molecular formula	C35H48N10O15
Molecular weight	848.81 Da

Specifications

Purity method: HPLC
Appearance: Lyophilized powder
Solubility: Reconstitute per protocol; see Supplies for diluents.
We don't publish a purity percentage here — that figure is only meaningful tied to the lot you actually receive, so it lives on the lot certificate.

Neurobiology

RIDDLE

DSIP

Delta sleep-inducing peptide, studied in sleep-architecture research.

What the research targets

Studied in delta-wave sleep architecture and circadian-regulation models.

Supply formats

Single units ship from stock. Cases are back-ordered against the same single-unit price.

Skinni Stick™ is newly released — available alongside the vial on every compound.

Single unit

Sample quantity — one unit.

10 mgVial
PS-3123996-10-MG
On verified account
Skinni Stick™ 10 mgSkinni Stick™New
Single-compound Skinni Stick™. Supplied to verified accounts only.
PS-3123996-PEN-10-MG
On verified account

Case — back-order

Ten of one size, at 10× volume pricing.

Case · 10 × 10 mg
Back-order — 15% off the single-unit price.
PS-3123996-C10-10-MG
On verified account
Case · 10 × Skinni Stick™ 10 mgNew
Back-order — 15% off the single-unit price.
PS-3123996-C10-PEN-10-MG
On verified account

One-time verification of professional or institutional affiliation. No payment is taken on this site.

Research use only

This compound is supplied exclusively for laboratory research by qualified professionals and institutions. It is not a drug, dietary supplement, or cosmetic, and is not for human or veterinary use. We publish no dosing, administration, or human-use guidance of any kind, and nothing here should be read as a claim about an effect in people.

From the research library

Cited summaries of the published work behind DSIP — what was studied, in which model, and what was measured.

All articles

Neurobiology

Neuropeptides: ACTH fragments, a sleep factor, and VIP

Three research lines with very different provenance — Soviet-era clinical pharmacology, a 1977 isolation that never fully resolved, and a well-characterised receptor system.

September 9, 20269 min read