Batch documentation
Certificate of analysis
Apex Laboratory results for the listed configurations. Match the lot on your label with the report.
DSIP - 5 mg
- DSIP chromatographic purity
- 99.953 % integrated detector area
- DSIP active content
- 5.00175 mg/vial
- Bacterial endotoxins
- <0.025 EU/mg active-equivalent
- Sterility: FTM
- No growth at 14 days in all 20 units
Chromatographic purity by analyte
About this graph
Recorded scalar results against the stated specification. Each row uses its own labeled scale; purity is detector-area purity, not active-material content.
Measured active content
About this graph
Calibrated active content, concentration or activity compared with the stated same-unit specification. Each row uses its own labeled scale; no conversion from chromatographic purity is made.
DSIP - 2 mg
- DSIP chromatographic purity
- 99.882 % integrated detector area
- DSIP active content
- 1.99946 mg/vial
- Bacterial endotoxins
- <0.025 EU/mg active-equivalent
- Sterility: FTM
- No growth at 14 days in all 20 units
Chromatographic purity by analyte
About this graph
Recorded scalar results against the stated specification. Each row uses its own labeled scale; purity is detector-area purity, not active-material content.
Measured active content
About this graph
Calibrated active content, concentration or activity compared with the stated same-unit specification. Each row uses its own labeled scale; no conversion from chromatographic purity is made.
DSIP, also called delta sleep-inducing peptide or emideltide, is a nine-residue peptide with the sequence Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu. This listing is for an in-vitro laboratory research material. Read our DSIP guide to human sleep studies, hormone findings and safety for the positive and weak results behind its name.
Compound Overview
DSIP was isolated through rabbit cerebral venous-dialysate experiments in the 1970s, and its defined sequence was synthesized and tested in electrophysiological models. Its name records that research history; it does not establish that every preparation produces deep sleep. Later studies used different species, populations, routes and measurements.
Research Background & Published Literature
Small human sleep studies reported both favorable observations and little meaningful benefit. In a 1992 double-blind parallel study of sixteen people with chronic insomnia, the abstract described some weak objective changes but no improvement in subjective sleep quality. Separate hormone experiments also include null results. Distinguish total time asleep, sleep stages, perceived sleep quality and endocrine measurements before interpreting a finding.
Researchers interested in the published literature surrounding this compound can explore the following peer-reviewed resources for additional context on its mechanism of action, signaling pathways, and experimental applications in controlled laboratory settings:
- Schoenenberger and colleagues (1978) — DSIP sequence, synthesis and rabbit assay
- Bes and colleagues (1992) — double-blind parallel study in chronic insomnia
Technical Specifications
- Product Name: DSIP
- Classification: Defined nonapeptide; sleep-related research history
- Structural Description: 9-residue peptide: Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu
- Parent-peptide CAS: 62568-57-4
- Parent-peptide molecular weight: 848.82 g/mol (reference peptide; salt or counterion basis requires separate documentation)
- Analytical results: Read the applicable report for its configuration, methods, results and reporting limits.
- Physical Form: Lyophilized (freeze-dried) powder
- Intended Use: In-vitro research use only — not for human consumption
Storage, Handling & Stability Guidelines
Use the applicable product label and your laboratory’s validated procedure for storage and solution preparation. A molecular identity or chromatographic result does not establish a solution shelf life. Record the actual handling conditions and assess suitability for the intended assay.
- Check the labeled storage conditions before receipt and handling.
- Document the solvent, concentration and preparation time used in the experiment.
- Follow institutional chemical-safety procedures and use appropriate protective equipment.
- Keep the compound, configuration and lot identifier with each prepared sample.
Quality Assurance & Analytical Verification
A published analytical report describes its identified sample and the methods used for that record. Read the applicable report in the batch panel or COA library, matching the compound, configuration and lot to your material. Chromatographic purity, identity and peptide content are different measurements; the record does not by itself establish the results for a later order, biological activity or sterility.
Frequently Asked Questions
What is the primary research application of this compound?
DSIP research includes sleep-stage and EEG measurements, behavior and endocrine endpoints. A result in one model does not establish a universal sleep effect. Define the exact peptide, comparator and measurement for the proposed experiment; the product name is not a validated positive control.
What storage conditions are recommended?
Follow the applicable label and a validated laboratory procedure. Storage and solution stability depend on the material, formulation and conditions; this page does not establish a general post-preparation lifetime.
Is this product approved for human use?
No. This product is supplied as an in-vitro laboratory research reagent, not a finished medicine for human or veterinary use. It should not be treated as interchangeable with a clinical study formulation.
What documentation is available for this compound?
Consult the applicable published record in the Lab Verified archive, checking its named compound, configuration, lot and methods. For a specific documentation question, use our contact page. Do not assume that every record contains the same tests or establishes the identity of a later shipment.
Is bulk ordering available?
For a quantity or packaging inquiry, contact the team with the compound name, desired amount, preferred configuration and target timeline. Confirm current availability, pricing and any special requirements before ordering.
Related Research Compounds
Researchers studying neuropeptide / sleep-related peptide pathways may also be interested in related compounds available from Apex Laboratory, including Selank, Semax, Epithalon. Explore our complete research catalog to browse all available peptides, reagents, and laboratory supplies, or visit our About page to learn more about our quality verification process.
Shipping, Packaging & Delivery
The stated shipping cutoff is 2:00 PM ET. Check the current shipping terms and order details for dispatch and delivery information. For a time-sensitive laboratory requirement, confirm availability and timing before ordering. Follow the applicable product label and laboratory handling procedure on receipt.
Research Use Disclaimer
For in-vitro research use only. Not for human consumption. DSIP is supplied here as a laboratory research reagent, not a finished medicine. Researchers are responsible for appropriate handling, documentation and the requirements that apply to their laboratory and intended experiment.
