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Heterocyclic Compounds

Hydroxyethyl imidazolidinone

CAS: 3699-54-5

Overview

Hydroxyethyl imidazolidinone (CAS 3699-54-5 ) is a cyclic urea derivative used as a humectant and moisture-retention agent across textile, personal care, and paper processing industries.

Its ability to bind and regulate moisture in treated substrates makes it a functional ingredient in both wet-process formulations and finished product applications for various industrial sectors.

In textile finishing, it is incorporated into crease-resistance and durable press formulations, helping fabrics maintain dimensional stability after washing and improving the overall hand feel.

Personal care formulators use it in leave-on and rinse-off products where sustained hydration of the skin or hair substrate is required to maintain health and appearance over time.

In paper and leather processing, it supports moisture management during treatment stages, contributing to flexibility and surface quality in the finished material during the manufacturing cycle.

It also appears in specialty coating formulations where controlled hygroscopicity of the substrate needs to be maintained through processing to ensure consistent application and drying results.

Hydroxyethyl imidazolidinone is typically supplied as an aqueous solution, with concentration levels varying by supplier and end-use specification to meet specific formulation requirements.

Technical grade is the standard commercial form for industrial textile and paper applications. Personal care grades with appropriate purity documentation are available for cosmetic formulation use.

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Physical Properties

Melting Point45 °C
Boiling Point220-240 °C @ Press: 20 Torr
Density1.19 g/mL at 25 °C
Flash Point185°C/3.5mm
ColorOff-White to Dark Yellow
FormSolid
Water Solubility982g/L at 20℃
Vapor Pressure0.001Pa at 25℃
Refractive Indexn 20/D 1.466
Log P-0.7 at 20℃

Safety & Handling

Warning GHS07 Hazard Statements H315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation Precautionary Statements P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P332+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P305+P351+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 Class10 - Combustible liquids
WGK (Germany)1

Other Names

1-(2-Hydroxyethyl)imidazolidin-2-one | 1-(2-Hydroxyethyl)-2-imidazolidinone | 2-Imidazolidinone1-(2-hydroxyethyl)- | N-(2-Hydroxyethyl)ethyleneurea | 1-(Hydroxyethyl)ethyleneurea | N-(2-Hydroxyethyl)imidazolidone | N-(β-Hydroxyethyl)-NN′-ethylene urea | 2-Hydroxyethylethylene Urea

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Chemical Properties

CAS Number
3699-54-5
EC Number
223-032-9
Mol. Weight
130.15

Industries

Documentation