DSIP (Delta Sleep-Inducing Peptide) is a synthetic nine-amino-acid peptide supplied as a 5mg lyophilized research material. It is intended exclusively for controlled in vitro laboratory research, analytical testing, and peptide characterization.
DSIP has the sequence Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu and a molecular weight of approximately 848.81 g/mol. Its conventional name reflects the terminology used in historical scientific literature and should not be interpreted as evidence of a physiological or therapeutic effect.
Lot-specific analytical documentation should be reviewed before use. The applicable Certificate of Analysis identifies the reported testing methods, compound identity, and analytical purity results for the supplied batch.
The primary concern for peptide researchers today is product purity. Nord-sci guarantees our product purity by performing independent testing of our products and providing those certifications for our customers in our product descriptions.
THIS PRODUCT IS NOT INTENDED TO TREAT, CURE OR DIAGNOSE ANY CONDITION OR DISEASE AND IS NOT FOR HUMAN CONSUMPTION. ALL PRODUCTS OFFERED ARE INTENDED FOR LABORATORY RESEARCH USE ONLY.
All products are produced using lyophilization (freeze-drying), a preservation method that allows peptides to remain fully stable during shipping for approximately 3-4 months. Once a peptide has been reconstituted with bacteriostatic water, it must be refrigerated to maintain integrity. After reconstitution, peptides typically remain stable for up to 30 days when stored properly.
Lyophilization, also referred to as cryodesiccation, is a specialized dehydration process in which peptides are first frozen and then exposed to a low-pressure environment. This causes the water within the vial to transition directly from a solid to a vapor (sublimation), leaving behind a dry, crystalline white material known as a lyophilized peptide. In this powdered form, peptides may be safely stored at room temperature until they are ready to be reconstituted with bacteriostatic water.
After delivery, peptides should be protected from heat and light. If use is expected within the near future (whether days, weeks, or a few months) refrigerated storage below 4°C (39°F) is generally sufficient. Lyophilized peptides are commonly stable at room temperature for several weeks or longer, making short-term ambient storage acceptable when use is anticipated within that timeframe.
For extended storage, ranging from several months to multiple years, freezing is strongly recommended. Storage at -80°C (-112°F) offers optimal long-term stability and helps preserve peptide structure and quality over time.
For more detailed guidance on peptide handling and storage best practices, please refer to the resource below:
DSIP (5mg), also known as Delta Sleep-Inducing Peptide, is a synthetic nonapeptide supplied as a lyophilized laboratory research material. Its established amino-acid sequence is Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu.
DSIP may be used as a test article or analytical reference in controlled in vitro research involving peptide identification, stability evaluation, analytical method development, and related biochemical investigations. Its conventional name reflects terminology used in historical scientific literature and should not be interpreted as evidence of a physiological or therapeutic effect.
This material is supplied exclusively for in vitro laboratory research and analytical use. It is not intended for human or animal consumption, in vivo procedures, veterinary use, clinical use, diagnosis, treatment, or disease prevention.
DSIP (5mg) – Research Specifications:
| Compound | Delta Sleep-Inducing Peptide |
| Abbreviation | DSIP |
| Quantity | 5mg per vial |
| Compound Type | Synthetic nonapeptide research material |
| Molecular Formula | C35H48N10O15 |
| Molecular Weight | Approximately 848.81 g/mol |
| CAS Number | 62568-57-4 |
| Sequence | H-Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu-OH |
| One-Letter Sequence | WAGGDASGE |
| Form | Lyophilized peptide powder |
| Purity / Identity | Refer to the lot-specific Certificate of Analysis for reported analytical results |
| Testing Documentation | Applicable analytical methods and results are identified on the lot-specific COA |
| Storage Conditions | Store according to the product label and lot-specific documentation |
| Research Use Only | For controlled in vitro laboratory and analytical use only. Not for human or animal consumption. |
Delta Sleep-Inducing Peptide is the conventional name assigned to a nine-amino-acid peptide with the sequence Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu. Its amino-acid sequence and synthetic characterization were documented in early laboratory literature.
DSIP has subsequently appeared in experimental literature involving peptide chemistry, analytical detection, degradation, metabolism, and biochemical assay development. Findings have varied across experimental systems, and the compound’s broader biological characterization remains unresolved.
For laboratory sourcing purposes, DSIP should be evaluated according to its chemical identity, sequence, analytical purity, physical form, storage requirements, and lot-specific documentation. Historical terminology and experimental findings do not establish clinical utility, efficacy, safety, or suitability for human or animal use.
Important Research Notice: Nordsci research materials include access to lot-specific analytical documentation. Researchers should review the applicable Certificate of Analysis for reported identity, purity, and testing information before beginning laboratory work.
THIS PRODUCT IS INTENDED EXCLUSIVELY FOR CONTROLLED IN VITRO LABORATORY RESEARCH. NOT FOR HUMAN OR ANIMAL CONSUMPTION. NOT FOR IN VIVO, CLINICAL, VETERINARY, DIAGNOSTIC, OR THERAPEUTIC USE. NOT A DRUG, DIETARY SUPPLEMENT, FOOD, OR COSMETIC.
DSIP may be included as an experimental test article in controlled in vitro investigations involving timing-related biochemical assay systems. Research designs should incorporate defined controls, documented variables, and validated analytical methods.
No representation is made that DSIP regulates circadian rhythms or produces a physiological outcome.
The conventional DSIP name reflects its historical association with experimental sleep literature. The name does not establish that the supplied research material induces, regulates, or otherwise changes sleep.
This product is restricted to in vitro laboratory and analytical use and is not supplied for clinical or in vivo sleep studies.
Qualified laboratories may use DSIP as a chemical test article in analytical investigations involving peptide detection, assay development, stability assessment, or biochemical screening.
Laboratory observations are specific to the selected experimental model and do not establish an endocrine, neurological, or clinical effect.
DSIP may be evaluated as a research compound within appropriately controlled in vitro assay panels. Experimental findings should be interpreted within the limitations of the selected assay, controls, and analytical methods.
No claim is made that DSIP changes stress, mood, cognition, neurological function, or any related human or animal outcome.
DSIP (5mg) should be handled only by qualified laboratory personnel using established procedures for research peptides and chemical test articles. Personnel should review the product label, applicable safety documentation, and lot-specific COA before handling the material.
Laboratories should use suitable personal protective equipment, calibrated laboratory equipment, and controlled storage conditions. Records should identify the lot number, storage history, analytical methods, experimental controls, and other relevant variables.
Protocol Design Considerations: Experimental work should include appropriate controls, predefined endpoints, validated methods, and complete documentation. Laboratory findings must not be extrapolated into claims regarding human or animal safety, efficacy, or health outcomes.
This information is provided exclusively for laboratory research reference. It does not include preparation, dosing, administration, or application instructions.
Lot-specific Certificates of Analysis provide documentation for the analytical testing reported for each supplied batch of DSIP. Depending on the applicable testing program, the COA may identify methods such as high-performance liquid chromatography or mass spectrometry and report the corresponding identity and purity results.
Researchers should consult the COA associated with the vial’s lot number rather than relying on a general purity representation.
Nordsci Peptides supplies DSIP (5mg) as a lyophilized research material for qualified laboratories and analytical programs. Product evaluation should be based on compound identity, lot traceability, analytical documentation, storage requirements, and intended-use restrictions.
IMPORTANT: DSIP (5mg) is sold exclusively for controlled in vitro laboratory research and analytical use. It is not intended for human consumption, animal consumption, in vivo procedures, veterinary use, diagnosis, treatment, disease prevention, food use, drug use, dietary supplementation, or cosmetic application.
