Description
OVERVIEWProduct overview
DSIP was identified in the 1970s in experiments on cerebral blood from sleeping rabbits and named for the delta-wave activity reported in those studies.
Subsequent work has examined sleep architecture, stress hormone responses and thermoregulation, with results that vary considerably between models.
Its endogenous role remains unresolved and no receptor has been definitively identified. Research use only.
SUPPLY IN IRELANDDSIP Ireland — supplied to research laboratories
Research groups across Ireland buy DSIP from Kensington Laboratories as a lyophilised DSIP peptide, released only against a batch-matched certificate of analysis. Every vial of high purity DSIP is verified by HPLC and LC-MS before it leaves the facility, so laboratories ordering DSIP in Ireland receive material with documented purity and identity.
Laboratory DSIP is packed for controlled storage and sent by tracked delivery in 3–5 days to Dublin, Cork, Galway, Limerick and the rest of Ireland. Delivery costs €9.90 per order. Teams planning DSIP research can review the specifications, certificate of analysis and reference list on this page before ordering.
Institutions searching for DSIP peptide suppliers in Ireland typically compare purity, batch documentation and delivery times. Each of those is published here: a 99% HPLC purity specification, a certificate matched to the batch code on your vial, and tracked delivery in 3–5 days.
DSIP is supplied strictly for laboratory research use only. It is not a medicine and is not for human or veterinary consumption.
SPECIFICATIONSProduct specifications
- Purity: ≥ 99% (HPLC)
- Appearance: White lyophilised powder
- Quantity: 5 mg per vial
- CAS number: 62568-57-4
- Sequence: Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu
- Peptide class: Nonapeptide first isolated from rabbit cerebral venous blood
- Also known as: Delta sleep-inducing peptide
- Solubility: Soluble in bacteriostatic or sterile water
- Storage temperature: Store at 2–8°C; long-term −20°C, protected from light
- Shelf life: 24 months lyophilised; 30 days reconstituted at 2–8°C
- Manufacturing standard: ISO 9001 facility, GMP-aligned solid-phase synthesis
- Batch information: Batch number and expiry printed on every vial label
RESEARCHResearch overview
The following summary is provided for educational and scientific context only. It describes what has been observed in published laboratory and animal studies and does not represent established clinical outcomes, medical advice or a claim of efficacy in humans.
Background
DSIP was identified in the 1970s in experiments on cerebral blood from sleeping rabbits and named for the delta-wave activity reported in those studies.
Subsequent work has examined sleep architecture, stress hormone responses and thermoregulation, with results that vary considerably between models.
Its endogenous role remains unresolved and no receptor has been definitively identified. Research use only.
Current research areas
Published investigation clusters around a small number of biological themes. Each remains experimental and none has been established as a therapeutic effect in humans.
- Sleep architecture and EEG endpoints in animal models
- Corticotropin and stress hormone response
- Thermoregulation studies
- Peptide stability and blood-brain barrier research
Scientific context and proposed mechanisms
No specific receptor for DSIP has been established, which is the central open question in the literature on this peptide.
Reported effects on sleep and stress endpoints are inconsistent across species and study designs, and should be treated cautiously.
Interpreting the evidence
Most published work in this area uses cell culture or rodent models with small group sizes and short observation windows. Independent replication varies considerably between compounds, and results are sensitive to species, route, dose and endpoint.
There is no regulatory-approved human protocol for this compound. Any laboratory protocol should be defined by the model under study, institutional ethical approval, appropriate controls and predefined endpoints.
References
CERTIFICATE OF ANALYSISIndependent batch testing
Every released batch is independently tested. Match the batch number on the vial to the certificate published online.
- Batch number
- KL-DSIP-2409A
- Testing laboratory
- Janoshik Analytical, s.r.o.
- Date tested
- 12 August 2026
- Reported purity
- 99.70%
- Method
- RP-HPLC with UV detection at 214 nm, confirmed by LC-MS
