- Purity (raw material): ≥99% by HPLC
- Lot-matched certificate of analysis
- Ships next business day, tracked
Cognitive, Mood & Sleep Peptides
DSIP Nasal Spray
Pre-mixed delta sleep-inducing peptide solution in a metered 15 mL or 30 mL bottle
- FormPre-mixed aqueous solution in a bottle fitted with a metered spray pump
- Mol. weight848.81 g/mol
Overview
This product supplies delta sleep-inducing peptide as a ready-to-dispense aqueous solution in a metered spray bottle rather than as a lyophilized powder requiring reconstitution. The molecule is identical to our vialed DSIP: the nonapeptide Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu, first isolated from rabbit cerebral venous blood during slow-wave sleep and studied since as an endogenous neuromodulatory peptide.
Delivery is by metered pump at approximately 0.1 mL per actuation, giving roughly 150 actuations from the 15 mL fill and twice that from the 30 mL, with the peptide concentration for each lot stated on the matched certificate of analysis rather than inferred from the bottle size. Two features of the WAGGDASGE sequence then govern how a filled bottle is handled. The aspartate-glycine pair is a well-documented site for deamidation and isomerisation in aqueous media, and the N-terminal tryptophan is prone to oxidation and photodegradation. Upright refrigerated storage at 2–8 °C, protected from light and never frozen, slows all of these. Laboratories comparing delivery routes normally verify actuation volume gravimetrically before a study opens, since priming state and technique both move that figure.
Specifications
Identity
- CAS number
- 62568-57-4
- Molecular formula
- C35H48N10O15
- Molecular weight
- 848.81 g/mol
- Amino acid sequence
- Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu (WAGGDASGE)
- Peptide class
- Endogenous nonapeptide neuromodulator
Supply & purity
- Form
- Pre-mixed aqueous solution in a bottle fitted with a metered spray pump
- Available sizes
- 15 mL, 30 mL
Additional detail
- Metered delivery
- Approximately 0.1 mL per actuation, giving roughly 150 actuations per 15 mL fill
- Peptide concentration
- Stated on the lot-matched certificate of analysis for each fill
- Active component
- DSIP (delta sleep-inducing peptide)
- Purity (raw material)
- ≥99% by HPLC; lot-matched COA available
- Reconstitution
- None required — supplied pre-mixed and ready to dispense
- Storage
- 2–8 °C, upright, protected from light; do not freeze the filled bottle
Units and conversions
This is a pre-mixed presentation: the strength is fixed at fill, and the only arithmetic between the label and the bench is a change of units. The peptide unit converter moves between mg, mcg, mL and µL without the decimal-point slip that costs a whole run.
Certificate of analysis
Every lot of DSIP Nasal Spray is released against a certificate of analysis: the batch-specific laboratory data for that lot, not a generic document for the compound. The lot number on the certificate matches the lot number printed on the label you receive — the vial label itself, where the product is vialled — so the record and the material it describes can always be reconciled.
Purity (raw material): ≥99% by HPLC — the specification for this listing. The figure for the lot you receive is the one reported on that lot’s certificate.
No lot certificate is on display on this page at the moment. That is a publishing state and not a testing one: lots are released and documented as described above whether or not the document is posted here, and we will send what exists for the lot in stock, or for a lot already on your bench, by its number.
Certificates are available on request before you order as well as after, with no account and no charge. Request the certificate for this listing, read the testing and documentation policy in full, or see how to read a peptide COA.
Questions about DSIP Nasal Spray
How does this differ from the DSIP vial?
The peptide is the same nonapeptide with the same specifications. The difference is format: this is a pre-mixed aqueous solution in a metered spray bottle, ready to dispense, while the vial is a lyophilized powder the laboratory reconstitutes itself before use.
How much solution does one actuation deliver?
The metered pump delivers approximately 0.1 mL per actuation, which works out to roughly 150 actuations from a 15 mL bottle. Actual delivered volume depends on priming state and actuation technique, so studies that depend on it normally verify gravimetrically.
Why is refrigerated storage required?
Peptides in solution degrade faster than lyophilized powder. DSIP's aspartate-glycine motif is susceptible to deamidation and isomerisation in water, and its tryptophan residue is prone to oxidation and photodegradation. Cold, dark, upright storage slows all three processes.
What documentation is available?
The peptide raw material is third-party HPLC tested to at least 99% purity, and a lot-matched certificate of analysis is available covering identity, purity and the concentration of the filled solution. Retain it with your study record for traceability.
Can the solution be used in assays other than nasal delivery work?
It can, but the solution contains formulation excipients that a reconstituted vial does not, and those can interfere with chromatography and certain assay chemistries. For non-delivery work, the lyophilized vial is usually the cleaner starting material.
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