Product Description of LDAO CAS# 1643-20-5
LDAO appears as a clear liquid ranging from colorless to pale yellow, with a relative density of 0.98 measured at 20°C. It dissolves readily in water and polar organic solvents while only sparingly soluble in nonpolar media, and displays amphiphilic properties featuring both nonionic and cationic characteristics in aqueous systems. It shifts to a fully cationic form under acidic conditions where pH is less than 7. Classified as an amine oxide surfactant, LDAO delivers outstanding detergency and creates abundant, long-lasting foam. Its melting point falls between 132°C and 133°C, which guarantees consistent functional performance when incorporated into diverse formula systems.
LDAO Chemical Properties
Melting point | 132-133 °C(lit.) |
Boiling point | 371.32°C (rough estimate) |
density | 0.996 g/mL at 20 °C |
vapor pressure | 0Pa at 25℃ |
refractive index | n20/D 1.378 |
Fp | 113°C (closed cup)(235 |
storage temp. | -20°C |
Ethanol:15.0(Max Conc. mg/mL);65.38(Max Conc. mM) | |
DMF:3.0(Max Conc. mg/mL);1.31(Max Conc. mM) | |
DMSO:0.1(Max Conc. mg/mL);0.44(Max Conc. mM) | |
PBS (pH 7.2):0.1(Max Conc. mg/mL);0.44(Max Conc. mM) | |
form | A crystalline solid |
pka | 4.79±0.40(Predicted) |
Specific Gravity | 0.97 |
Water Solubility | Insoluble in water. |
Sensitive | Hygroscopic |
BRN | 1769927 |
Stability: | Stable. Incompatible with strong oxidizing agents. Combustible. |
LogP | 1.85 at 20℃ |
EPA Substance Registry System | Lauryldimethylamine oxide (1643-20-5) |
Safety Information
Hazard Codes | C |
Risk Statements | 34-52/53 |
Safety Statements | 26-36/37/39-45-27 |
RIDADR | UN 3259 8/PG 2 |
WGK Germany | 2 |
RTECS | JR6650000 |
F | 46091 |
TSCA | Yes |
HazardClass | 8 |
PackingGroup | III |
HS Code | 29299090 |
Hazardous Substances Data | 1643-20-5(Hazardous Substances Data) |
Toxicity | mouse,LD50,intraperitoneal,375mg/kg (375mg/kg),French Medicament Patent Document. Vol. #4264M, |
