Glycerin anhydrous for molecular biology

Chemical name: 1,2,3-Propanetriol, Glycerin, Trihydroxy alcohol

Synonyms: Glycerin, Glycerol

CAS number: 56-81-5

EC number: 200-289-5

Chemical formula: _C3H8O3

Molar mass: 92.1 g/mol

Physicochemical properties

• Form: liquid
• Color: colorless
• Odor: characteristic, faintly perceptible
• pH value: 5.5 - 8 (50 g/l, 20°C)
• Melting point: 18°C
• Boiling point: 290°C (with decomposition)
• Flash point: 160°C
• Autoignition temperature: 429°C
• Explosion limits: lower: 0.9 vol%, upper: no data available
• Vapor pressure (20°C): < 0.01 mmHg
• Density (20°C): 1.261 - 1.263 g/cm³
• Viscosity (20°C): 1450 mPa-s
• Solubilityin water: complete
• Solubilityin ethanol: soluble
• Log P(O/W): -2.66 (calculated)

Additional purity parameters

• Glycerin content: ≥ 99.7%
• Water content: typically 0.3
• Color (Hazen scale): max. 10
• Fatty acids and esters: max. 0.20 meq/kg
• Diethylene glycol: max. 0.10%
• DEG and related substances (total): max. 1.0%
• Chlorides: according to USP
• Heavy metals: max. 0.0005%
• Refractive index (20°C): 1.470 - 1.475
• Relative density 25/25: 1.2615 - 1.2635
• Organic and inorganic impurities: meets EP, USP, FCC requirements

Storage

Store in tightly closed original container at room temperature in a dry, well-ventilated place away from ignition sources. Protect from moisture and contamination.

Application

Glycerin anhydrous for molecular biology is intended for laboratory applications including molecular biology, biochemistry and biotechnology. It is used, among others, as a component of buffers, preservatives and reagents for stabilizing protein and enzyme structures.