Product Overview
N,N-Dimethyldodecylamine (CAS 112-18-5), also known as Lauryldimethylamine, is an organic tertiary amine belonging to the fatty amine family. It has the molecular formula C14H31N and a molecular weight of 213.40 g/mol. It typically appears as a clear, colorless to slightly yellow liquid and is insoluble in water. This compound is widely used as an intermediate in the production of quaternary ammonium compounds, amine oxides, and betaines.

N,N-Dimethyldodecylamine Chemical Properties
Melting point | −20 °C(lit.) |
Boiling point | 80-82 °C0.1 mm Hg(lit.) |
density | 0.787 g/mL at 20 °C(lit.) |
vapor pressure | <129 mm Hg ( 21 °C) |
refractive index | n20/D 1.4375(lit.) |
Fp | >230 °F |
storage temp. | -20°C |
solubility | Chloroform (Slightly), Methanol (Slightly) |
form | Liquid |
pka | 9.78±0.28(Predicted) |
color | Clear |
Specific Gravity | 0.786 (20℃) |
Water Solubility | Negligible |
Sensitive | Air & Moisture Sensitive |
BRN | 1700191 |
LogP | 1.3-6.91 at 20℃ and pH7.1-8.8 |
Surface tension | 25.2mN/m at 1g/L and 25℃ |
Dissociation constant | 9.78 at 25℃ |
CAS DataBase Reference | 112-18-5(CAS DataBase Reference) |
NIST Chemistry Reference | 1-Dodecanamine, N,N-dimethyl-(112-18-5) |
EPA Substance Registry System | Lauryldimethylamine (112-18-5) |
Safety Information
Hazard Codes | C,N |
Risk Statements | 22-34-50/53 |
Safety Statements | 26-36/37/39-45-60-61 |
RIDADR | UN 2735 8/PG 2 |
WGK Germany | 2 |
RTECS | JR6600000 |
F | 10-34 |
TSCA | Yes |
HazardClass | 8 |
PackingGroup | III |
HS Code | 29211990 |
Hazardous Substances Data | 112-18-5(Hazardous Substances Data) |
Main Applications
- Quaternary Ammonium Compounds: Used as a key manufacturing intermediate.
- Amine Oxides: Applied in the production of amine oxide derivatives.
- Betaines: Used in the synthesis of betaine surfactants.
- Surfactant Manufacturing: Serves as a raw material for specialty surfactants.
- Chemical Synthesis: Used in various organic chemical processes.
- Industrial Formulations: Applied in specialty chemical production.