
Delta Sleep-Inducing Peptide
DSIP
Nonapeptide studied in sleep and stress-response research.
$59.00
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Volume Discounts
Don't forget your reconstitution solution
Bacteriostatic Water 30mL
$25.00
Purchase Options
Lab Verified
HPLC-MS + endotoxin
Same-Day Ship
Orders by 2PM EST
Damage Coverage
Free replacement
Discreet Packaging
Plain outer box
Research Use Only
Not for human or veterinary consumption. For laboratory and in-vitro research purposes only.
Total
$59.00
Description
DSIP is a nonapeptide investigated in sleep-cycle and stress-response laboratory research.
Reconstitution
Reconstitute with bacteriostatic water in your preferred ratio. Store reconstituted vials refrigerated (2–8 °C) and use within recommended timeframes for your protocol.
Storage
Unreconstituted lyophilized powder stable at room temperature for short periods; refrigerate (2–8 °C) for long-term storage. Avoid repeat freeze/thaw cycles.
- Dose
- 5mg
- Purity
- ≥ 99%
- Form
- Lyophilized powder
- Storage
- Refrigerate after reconstitution
- Origin
- USA — synthesized & shipped domestically
- Testing
- HPLC-MS, MALDI, endotoxin screen
Certificate of analysis available on request
The batch certificate for this item isn't published online yet. Request it here and we'll email you the lab report for the batch you receive.
Research Overview
DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring nonapeptide first isolated from rabbit brain during slow-wave sleep. It is used in laboratory studies of sleep architecture, stress-response biology, and neuroendocrine modulation.
Mechanism of Action
DSIP's exact mechanism remains an active area of research. In-vitro models suggest interactions with GABAergic, opioidergic, and HPA-axis signaling.
Research Applications
- Sleep architecture research
- HPA-axis modulation studies
- Neuropeptide screening
Reconstitution & Handling
Certificate of Analysis
Lot / Batch
QP-2025-6982
- Product
- DSIP
- Manufacture date
- 2025-07-19
- Test date
- 2025-07-22
- Expiration
- 2028-07-19
- Appearance
- White to off-white lyophilized powder
- Identity
- Confirmed — matches reference standard
- Purity (HPLC)
- 99.40%
- Water content (KF)
- 1.80%
- Endotoxin (LAL)
- < 0.07 EU/mg
- Bioburden
- < 1 CFU / vial
- Analytical methods
- RP-HPLC, ESI-MS, MALDI-TOF, LAL endotoxin assay
- Released by
- QPUSA Quality Assurance Lab




