Core Functional & Performance Advantages
Unique pH-responsive amphoteric surfactant structure
As a classic amine oxide amphoteric surfactant, it presents cationic performance under acidic conditions and nonionic features in neutral and alkaline environments. It achieves excellent compatibility with anionic, cationic, nonionic and other amphoteric surfactants, and generates remarkable synergistic effects when compounded with AES, sodium sulfate and betaine surfactants to upgrade overall formula performance.
Powerful foaming stabilization and self-thickening capacity
It acts as an efficient foam booster and stabilizer, generating delicate, dense and long-lasting foam that remains stable even in hard water with high mineral content. It possesses natural thickening effects without extra thickening additives, simplifying formulation design for transparent cleansing products.
Mild, skin-friendly and irritation-mitigating characteristic
It can significantly lower the irritation of anionic surfactants to human skin and mucous membranes. With low irritancy, it is the ideal functional additive for sensitive skin care products, infant cleansing supplies and mild facial detergents, and also carries mild broad-spectrum bacteriostatic properties against common bacteria.
Eco-friendly and multi-functional auxiliary agent
The product is readily biodegradable and conforms to global environmental protection standards for cosmetics and detergents. It integrates multiple functions including detergency, emulsification, antistatic property, softening and calcium soap dispersion. It tolerates high electrolyte concentration without precipitation, perfectly suitable for concentrated cleaning formulas and industrial heavy oil degreasers.
Wide-range industrial application scenarios
Personal care & cosmetic raw materials: shampoo, body wash, facial cleanser, hand sanitizer and shaving foam
Household & industrial cleaning products: dishwashing liquid, multi-purpose surface cleaner, liquid laundry detergent
Textile chemical auxiliaries: fiber antistatic agent and fabric softener
Biochemistry research reagent: non-denaturing detergent for membrane protein extraction and purification
DDAO is a far-red fluorogenic substrate for esterase and lipase.
| 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 |
| solubility | 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) |
| pka | 4.79±0.40(Predicted) |
| form | A crystalline solid |
| color | White to off-white |
| Specific Gravity | 0.97 |
| PH | 7.0-9.0 (25°C, 0.1M in H2O) |
| Water Solubility | Insoluble in water. |
| Sensitive | Hygroscopic |
| BRN | 1769927 |
| Stability: | Stable. Incompatible with strong oxidizing agents. Combustible. |
| Cosmetics Ingredients Functions | CLEANSING SURFACTANT - CLEANSING PERFUMING HAIR CONDITIONING ANTISTATIC SURFACTANT - FOAM BOOSTING SURFACTANT - HYDROTROPE VISCOSITY CONTROLLING |
| Cosmetic Ingredient Review (CIR) | LDAO (1643-20-5) |
| InChI | 1S/C14H31NO/c1-4-5-6-7-8-9-10-11-12-13-14-15(2,3)16/h4-14H2,1-3H3 |
| InChIKey | SYELZBGXAIXKHU-UHFFFAOYSA-N |
| SMILES | CCCCCCCCCCCC[N+](C)([O-])C |
| 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 | 3-10 |
| TSCA | TSCA listed |
| HazardClass | 8 |
| PackingGroup | III |
| HS Code | 29299090 |
| Storage Class | 11 - Combustible Solids |
| Hazard Classifications | Acute Tox. 4 Oral Aquatic Acute 1 Aquatic Chronic 2 Eye Dam. 1 Skin Irrit. 2 |
| Hazardous Substances Data | 1643-20-5(Hazardous Substances Data) |
| Toxicity | mouse,LD50,intraperitoneal,375mg/kg (375mg/kg),French Medicament Patent Document. Vol. #4264M, |
