1,2-Distearoyl-sn-glycero-3-phosphocholine (CAS 816-94-4) User Guide
Table of Contents
1. Product Overview
CAS Number: 816-94-4
Chemical Name: 1,2-Distearoyl-sn-glycero-3-phosphocholine (DSPC)
Molecular Formula: C44H86NO8P
Molecular Weight: 788.13 g/mol
Appearance: White to off-white powder
Purity: ≥99% (HPLC)
Storage: Store at -20°C in a tightly sealed container, protected from moisture.
2. Applications & Uses
DSPC is a saturated phospholipid widely used in:
- Drug Delivery: Key component in liposomal formulations for controlled release of therapeutics.
- Lipid Bilayer Research: Model membrane studies due to its high phase transition temperature (~55°C).
- Cosmetic Industry: Stabilizer in emulsions and nanoemulsions for skincare products.
- Gene Therapy: Enhances stability of lipid-based nucleic acid delivery systems.
3. Usage Instructions
Storage & Handling
- Keep sealed under inert gas (e.g., nitrogen) to prevent oxidation.
- Allow the product to equilibrate to room temperature before opening.
Liposome Preparation
- Dissolve DSPC in chloroform (10 mg/mL).
- Mix with cholesterol (molar ratio 55:45) and other lipids as required.
- Dry using rotary evaporation to form thin film.
- Hydrate with buffer (e.g., PBS, pH 7.4) at 60°C for 1 hour.
- Extrude through polycarbonate membranes (100-200 nm pores).
4. Application Cases
Case 1: Liposomal Doxorubicin Formulation
DSPC (40 mol%) combined with cholesterol (45 mol%) and PEG-DSPE (15 mol%) creates stealth liposomes for extended circulation of anticancer drugs. Result: 80% encapsulation efficiency with 72-hour serum stability.
Case 2: CRISPR-Cas9 Delivery System
Ionizable lipid/DSPC (35:55 ratio) nanoparticles achieved 90% gene editing efficiency in hepatocytes at 0.5 mg/kg dosage.
Case 3: Anti-Aging Cream Formulation
3% DSPC in O/W emulsion improved retinol stability by 300% compared to traditional surfactants.
5. Contact Information
For technical specifications or bulk orders:
- Email: info@vivalr.com
- Tel: (86) 15866781826