DSIP

CAS 62568-57-4
$75 to $305

DSIP

5mg per vial

CAS 62568-57-4

Available packs
2 vials
10mg
5 vials
25mg
10 vials
50mg
In stock
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Pack price
Selected pack
10mg pack
2 vials x 5mg · 10mg total · $7.50/mg
Pack price
$75
Quantity
Free-shipping eligibility is calculated in your cart.
Current-lot certificate rows are available below.

Research Use Only. Not for use in diagnostic tests.

Before ordering
  • Independent certificate details, manufacturer IDs, and batch IDs should be reviewed before purchase when available.
  • Order cancellations for full refunds are available before shipment; shipped orders cannot be cancelled or refunded.
  • For damaged or incorrect goods, photograph the outer packaging, inner packaging, and agent labels, then email support within 48 hours of carrier delivery.

Buy DSIP peptide in 5mg vials

Buy DSIP peptide from Peptide Partners as lyophilized powder in 5mg vials, supplied strictly for laboratory research. Packs hold 2, 5 or 10 vials, which gives 10mg, 25mg or 50mg of material per order. The small fill suits labs that want to open one vial at a time and keep the rest sealed, and it sits in the neuropeptide section of our research peptides range. Because every vial in a pack comes from one lot, the batch ID on the label links each vial back to the same set of test records.

What is delta sleep-inducing peptide?

DSIP, short for delta sleep-inducing peptide, is a nonapeptide with the sequence Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu. It was first isolated in 1977 by Swiss researchers from the cerebral venous blood of rabbits, and the name records the conditions of that original experiment rather than an established function. Its short, unmodified sequence contains no cysteine or disulfide bridges, which makes identity and purity straightforward to confirm by standard analytical methods. Decades later, its biological role is still debated: no dedicated receptor has been conclusively identified, and published work spans neurochemistry, neuroendocrine and stress-response studies in animal and cell models. That open question is exactly why it remains an object of research. Nothing here describes an effect in people; the material is sold for in-vitro and laboratory study only.

DSIP for sale: packs and cost per mg

  • 2 vials × 5mg = 10mg pack
  • 5 vials × 5mg = 25mg pack
  • 10 vials × 5mg = 50mg pack
When you buy DSIP peptide in a larger pack, the price per mg comes down, so the 50mg pack is the most economical by weight; each pack’s live price is shown above. The 10mg pack is a sensible starting point for a first protocol, and the 25mg and 50mg packs keep follow-up work on the same batch.

Third-party tested DSIP, ordered online

Every DSIP lot we list goes through independent third-party testing, and the current lot has passed endotoxin, heavy-metal and purity screening. Each lot’s purity and screening results are listed in the specification table and the Certificates tab, tied to the batch ID printed on the vial. We take CashApp, Apple Pay, Chime and cryptocurrency, and the payment options page walks through each method. Free-shipping eligibility is calculated in the cart. If you need to change plans, an order can be cancelled for a full refund before it ships, and damaged or incorrect items are replaced when reported with photos within 48 hours of delivery.

DSIP FAQ

What is DSIP peptide used for?

DSIP is sold for laboratory research only. In the scientific literature it appears in neurochemistry, neuroendocrine and stress-response studies using animal and cell models, and its biological role is still debated. Peptide Partners supplies it as lyophilized powder in 5mg vials and makes no claims about use in people.

What does DSIP stand for?

DSIP stands for delta sleep-inducing peptide. The name comes from the 1977 experiment in which the nonapeptide was first isolated from rabbit cerebral venous blood. It describes the conditions of that study, not a confirmed function, and no specific receptor for the peptide has been conclusively identified.

What pack sizes is DSIP for sale in?

DSIP comes in 5mg vials sold in packs of 2, 5 or 10, which is 10mg, 25mg or 50mg per order. All vials in a pack share one lot and one batch ID, and the price per mg falls as you move up to the larger packs.

How is DSIP tested before sale?

Each lot is sent for independent third-party testing. The current DSIP lot has passed endotoxin, heavy-metal and purity screening, and the figures are shown in the specification table and the Certificates tab. You can also search the certificate ledger with the batch ID from your vial label.

How should unopened DSIP vials be stored?

Keep the sealed, freeze-dried vials in a freezer for long-term storage, or in a cool, dry and dark place for short periods. Once reconstituted in a research setting, the solution should be refrigerated and handled with sterile technique. Opening one 5mg vial at a time keeps the others sealed.

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DSIP

Delta-sleep-inducing peptide

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Agent Format
5mg vials
Vial Size
5mg
Vial Capacity
3 mL
Box Combinations
10mg, 25mg, 50mg
Cost per milligram
$6.10 – $7.50
Multi-vial Purity
99.81%
Endotoxin Screening
PASSED
Heavy Metals Screening
PASSED
Purity Screening
PASSED
Independently Tested
YES
Peptide Partners Manufacturer Id: WF03

Batch Id:  DS202605

 

How to store DSIP 5mg vials

DSIP ships as a freeze-dried powder in sealed 5mg vials. The seal is what protects it, so leave every vial closed until the day it is used. Vials held for months belong in a freezer; vials needed within a short window can sit somewhere cool, dry and out of direct light. Because the fill is small, even a thin layer of condensation matters, so let a frozen vial warm up before opening it.

When a lab reconstitutes a vial, BAC water for peptide reconstitution is the usual diluent. Keep the reconstituted vial refrigerated, use sterile technique for every draw and note the date on the label.

  • Format: lyophilized, sealed 5mg vial
  • Months ahead: freezer
  • Days ahead: cool, dry, dark
  • Once reconstituted: refrigerate, handle sterile

The DSIP certificate of analysis for every lot we sell sits in our independent certificates ledger. Search it by the batch ID on your DSIP 5mg vial to see the third-party record for that lot, covering endotoxin, heavy-metal and purity screening, and to confirm the vials in your pack match the documented batch.

Current lot certificates

15 published certificate rows across 4 screening categories.

Search certificate ledger

Endotoxin

AgentBatch IDManufacturerLaboratoryDouble validatedFile
DSIPDS20250820WF03Kovera LabsYesView file
DSIPDS202605WF03Kovera LabsYesView file
DSIPDS20250820-1WF03Kovera LabsYesView file
DSIPDS20250820WF03Kovera LabsYesView file
DSIPDS202605WF03Kovera LabsYesView file
DSIPDS202605WF03Kovera LabsYesView file

Purity

AgentBatch IDManufacturerLaboratoryDouble validatedFile
DSIPDS202605WF03Kovera LabsYesView file
DSIPDS202605WF03Kovera LabsYesView file

Heavy metals

AgentBatch IDManufacturerLaboratoryDouble validatedFile
DSIPDS202605WF03Kovera LabsYesView file
DSIPDS202605WF03Kovera LabsYesView file
DSIPDS202605WF03Kovera LabsYesView file

Sterility

AgentBatch IDManufacturerLaboratoryDouble validatedFile
DSIPDS202605WF03Kovera LabsYesView file
DSIPDS202605WF03Kovera LabsYesView file
DSIPDS202605WF03Kovera LabsYesView file
DSIPDS202605WF03Kovera LabsYesView file

DSIP

DSIP, 5mg per vial, available in 10mg, 25mg and 50mg packs.

Pack pricing runs from $75 for the 10mg pack to $305 for the 50mg pack.

Research Use Only. Not for use in diagnostic tests.

Delta sleep-inducing peptide in the neuropeptide range

Of the three neuropeptides we carry, DSIP has the longest research history. It is also the only nonapeptide in our neuropeptide group and the smallest fill we sell, at 5mg per vial. That makes it a practical choice for short exploratory runs where opening a large vial would waste material.

It is often ordered with the two Pro-Gly-Pro heptapeptides, Semax peptide 30mg vials and N-acetyl Selank amidate vials, which lets a lab build a small neuropeptide panel from lots that each carry their own batch records.

Short name
DSIP (5mg vials)
CAS
62568-57-4
Vial strength
5mg vials
Pack sizes
10mg pack, 25mg pack and 50mg pack
Pack count options
2, 5 and 10 vial packs
Compliance
Research Use Only. Not for use in diagnostic tests.

Also known as DSIP and delta sleep-inducing peptide. CAS number 62568-57-4. Molecule class: nonapeptide (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu) first isolated in 1977 from rabbit brain venous blood, supplied as lyophilized powder in 5mg vials sold in packs of 2, 5 or 10. Labs interested in short regulatory peptides also look at Pinealon 20mg tripeptide vials.