DSIP

Description

DSIP is a small neuropeptide used as a reference and test article in neuroscience and sleep-related research, and it sits alongside the rest of our research peptides in Canada as a lyophilized, third-party tested reagent. It is offered in 5 mg and 10 mg vials, individually or in boxes of ten, shipped cold from within Canada. Research use only — not for human or veterinary use.

Overview

Delta sleep-inducing peptide is a nonapeptide (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu) first described in the 1970s from work on delta-wave sleep in animal models, and it has been used as a laboratory tool in neuropeptide and circadian research ever since. It is supplied here as a sterile-filled, lyophilized white powder in a sealed glass vial, sealed under a crimped cap, ready to be reconstituted in the solvent your protocol calls for — typically bacteriostatic or sterile water for aqueous work. Each production lot is sampled and sent to Janoshik Analytical, an independent laboratory, for purity determination by HPLC and identity confirmation by mass spectrometry; the resulting certificate of analysis is matched to the lot number on the vial you receive, not to a generic reference document.

What it is known for

Buyers know DSIP as one of the small, well-characterized neuropeptides that turns up repeatedly in sleep-architecture and neuroendocrine literature, which makes lot-to-lot consistency matter more than usual — a short peptide with a low working mass leaves no room for guessing at content. This listing is chosen for the independent Janoshik testing behind every batch, the batch-matched COA rather than a stock certificate, and domestic dispatch from a Canadian-owned supplier, which keeps transit short and avoids border delays on a cold-shipped item.

Key features

• Lyophilized powder format — Freeze-dried peptide is far more stable in storage and transit than solution, so the vial arrives with its content intact and you control the buffer, concentration and volume at the bench.
• HPLC purity testing on every lot — Tells you how much of the vial is actually the target peptide rather than truncation products, counterion or residual solvent — the number your calculations depend on.
• Mass spectrometry identity confirmation — Confirms the molecular mass corresponds to the nine-residue DSIP sequence, ruling out a mislabelled or substituted product before it ever reaches an experiment.
• Independent third-party analysis (Janoshik) — The lab reporting the result has no stake in the outcome, which is the difference between a supplier’s claim and verifiable data you can cite in a methods section.
• Batch-matched certificate of analysis — The COA corresponds to the lot code on your vial, so your records tie a specific result to a specific experiment — necessary for reproducibility and for any audited work.
• Two fill sizes and single or ten-vial boxes — 5 mg suits a pilot run or dose-ranging work; 10 mg and case quantities reduce per-vial cost and, more importantly, let a longer study run on one lot with one COA.
• Sealed vial with crimped stopper — The closure stays intact until you pierce it, protecting the powder from moisture uptake — lyophilized peptides are hygroscopic and clumping is the first sign of exposure.
• Cold storage and tracked domestic shipping — The reagent is held cold before dispatch and moves within Canada on a tracked service, so time in transit is short and you can see where the parcel is.

Benefits

• You know what is in the vial before you open it, because purity and identity come from a lab that did not make the product
• Your data is defensible — lot number, COA and experimental record line up
• Ordering a box of ten keeps a full study on a single lot, removing batch variation as a confounder
• Domestic dispatch means fewer transit days and no customs hold on a temperature-sensitive reagent
• Lyophilized supply gives you freedom over solvent, concentration and aliquoting instead of inheriting someone else’s formulation

Specifications

Typical applications

• In-vitro neuropeptide and receptor-interaction studies
• Sleep-architecture and circadian research in laboratory models
• Analytical method development — HPLC, LC-MS and immunoassay standardization
• Peptide stability, solubility and formulation work
• Comparative studies alongside other short neuroactive peptides
• Use as a reference material for identity and purity checks

Important information

• Research use only. This product is not a drug, supplement, food or cosmetic, is not intended to diagnose, treat, cure or prevent any disease, and is not for human or veterinary use, ingestion or administration.
• Store the sealed lyophilized vial cold and protected from light; keep it dry, as freeze-dried peptide readily takes up atmospheric moisture.
• Allow the vial to reach room temperature before opening or reconstituting, so condensation does not form on the cold powder.
• Reconstitute with a solvent appropriate to your protocol and add it slowly down the vial wall rather than directly onto the cake; swirl, do not shake, as agitation can degrade short peptides.
• Once in solution, refrigerate and use within a short working window, or aliquot and freeze to avoid repeated freeze-thaw cycles.
• Confirm the lot number on the vial matches the certificate of analysis and keep the COA with your experimental records.
• Buyers should be qualified research personnel working in an appropriate laboratory setting.

Common questions

What does the certificate of analysis show?

HPLC purity and mass spectrometry identity for the specific lot in your vial, produced by Janoshik, an independent analytical laboratory. Because it is batch-matched rather than generic, the result belongs to the material you received.

Which size should I order?

A 5 mg vial suits a pilot experiment or method development. Choose 10 mg, or a box of ten in either fill weight, when you need a longer study to run on one lot — keeping a single lot across a study removes batch variability from your results.

How do I reconstitute it?

Bring the vial to room temperature, then add your chosen solvent — commonly bacteriostatic or sterile water for aqueous work — slowly against the inside wall of the vial and swirl gently until dissolved. The lyophilized format means the concentration is yours to set based on the stated fill weight and the purity figure on the COA.

How is it shipped?

Cold-held and dispatched from within Canada on a tracked service, in discreet packaging. Domestic shipping keeps transit short and avoids the customs delays that affect temperature-sensitive reagents crossing a border.

Can this be used on humans or animals?

No. It is supplied strictly as an in-vitro laboratory reagent. It is not a drug, supplement or veterinary product and must not be ingested or administered.

What should the powder look like?

A white to off-white cake or powder. If it appears sticky, clumped or partially collapsed, that usually indicates moisture exposure — check the seal and contact us before use.

In summary

A short, well-characterized neuropeptide supplied the way a laboratory needs it: lyophilized, sealed, independently tested by HPLC and mass spectrometry, and documented with a certificate tied to the lot in your hand. Available in 5 mg and 10 mg vials, singly or by the box of ten, shipped cold and tracked from Canada. Strictly for in-vitro research.