Overview
Dodecyl ethyleneglycol monoether (CAS 4536-30-5 ), also known commercially as Laureth-1 and 2-(Dodecyloxy)ethanol, is a short-chain ethoxylated fatty alcohol used across industrial and personal care formulations.
It functions as a low-foam surfactant, emulsifier, and solvent carrier where controlled surface activity and degreasing performance are required. In textile and leather processing, it supports scouring and degreasing baths.
Low-foaming behavior is critical to continuous processing lines in these industries. Personal care formulators incorporate it as an emulsifier and solvent carrier in rinse-off products for efficient oil dispersion.
Its short ethoxylate chain delivers performance without heavy residue. Agricultural formulation chemists use it to improve active ingredient dispersion and wetting in emulsifiable concentrate and suspension formulations.
In industrial cleaning compounds, it contributes degreasing performance in hard-surface and metal-cleaning applications requiring foam control. This versatility makes it a staple in chemical manufacturing.
Dodecyl ethyleneglycol monoether is supplied as a clear to slightly hazy liquid at ambient temperature. Technical grade is the standard commercial offering for most industrial applications.
Cosmetic-grade material is available for personal care applications meeting Laureth-1 purity expectations. Bulk supply is typical in drums and IBC containers to meet high-volume manufacturing needs.
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Physical Properties
| Melting Point | <10 °C |
| Boiling Point | 124-126 °C @ Press: 1 Torr |
| Density | 0.931 g/cm³ @ Temp: 40 °C |
| Flash Point | 20 °C |
| Appearance | colourless or faintly green liquid |
| Form | A neat oil |
| Refractive Index | n 20/D 1.446 |
| Log P | 5.050 (est) |
Safety & Handling
Danger GHS05 GHS07 Hazard Statements H302 Harmful if swallowed H315 Causes skin irritation H318 Causes serious eye damage Precautionary Statements P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. P321 Specific treatment (see … on this label). P330 Rinse mouth. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P332+P317 Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| Storage Class | 10 - Combustible liquids |
| WGK (Germany) | 3 |
Other Names
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Chemical Properties
- CAS Number
- 4536-30-5
- EC Number
- 224-886-5
- Mol. Weight
- 230.39
- Category
- Alcohols & Glycols