Delta-Sleep-Inducing Peptide (DSIP) is a 9-residue endogenous neuropeptide originally isolated from cerebral venous blood of sleeping rabbits. Despite the name, its primary research interest extends beyond sleep architecture into stress-response, opioid-receptor modulation, and circadian-axis pharmacology.
Each vial is lyophilized from acetate buffer, sealed under nitrogen, and shipped ~4 days from our lab.
Sold for laboratory research only. This material is not a drug, food, or cosmetic and is not intended for diagnostic, therapeutic, or recreational use.
Identity
Parameter
Value
Sequence
Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu
Molecular formula
C₃₅H₄₈N₁₀O₁₅
Molecular weight
848.83 g/mol
CAS number
62568-57-4
Length
9 residues
Quality
Test
Specification
HPLC purity
99.06%
Certificate of Analysis
The lot-specific COA for this product is available on request. Email support@lumerapeptide.com with your batch number and we will send it.
Allow vial to reach room temperature before opening (≥ 20 minutes). Reconstitute with 1.0-2.5 mL of sterile bacteriostatic water (0.9% benzyl alcohol). Inject solvent slowly down the inner wall of the vial; do not direct stream onto the lyophilized cake.
Swirl gently for 30 seconds. Do not vortex. Allow to dissolve for 5 minutes; clarity should be complete with no visible particulates.
Storage after reconstitution
Reconstituted solution is stable for 28 days at 2-8 °C in original vial. For longer storage, aliquot into low-binding tubes and hold at −80 °C; avoid repeated freeze-thaw cycles. Discard if turbidity, color change, or particulate matter is observed.
Selected references
Schoenenberger GA, Monnier M. Characterization of a delta-electroencephalogram (sleep)-inducing peptide. Proc Natl Acad Sci USA. 1977;74(3):1282-1286.
Graf MV, Kastin AJ. Delta-sleep-inducing peptide (DSIP): a review. Neurosci Biobehav Rev. 1984;8(1):83-93.
Khvatova EM et al. DSIP and stress: actions on neurochemical and metabolic parameters. Stress. 2003;6(1):79-86.
