2-Methyl-1,3-propanediol

Basic Information

CAS No.	2163-42-0
EC No.	218-491-7
Linear Formula	HOCH2CH(CH3)CH2OH
Molecular Weight	90.12 g/mol
Appearance	Colorless to light yellow clear liquid
Melting Point	-91 °C (lit.)
Boiling Point	212–214 °C (lit.)
Density	1.015 g/mL at 25 °C (lit.)
RIDADR	Not regulated as dangerous goods (typical)
Chemical Structure

Key Applications

• Major monomer for polyester and coating resins: Extensively used in the production of polyester resins for gel coats, industrial coatings, and composite materials where it improves flexibility and processability.

• Reactive diol in polymer formulations: Employed as a chain extender or modifier in polyurethane and polyester systems to enhance adhesion, toughness, and overall performance characteristics.

• Chemical intermediate for specialty esters: Serves as a key building block in the synthesis of synthetic lubricants, corrosion inhibitors, and other high-value ester products.

• Solvent and modifier in coatings and adhesives: Applied in coating formulations, adhesives, and specialty blends where its solvency, low volatility, and compatibility provide formulation advantages.

• Polymer additive and processing aid: Used to modify polymer properties and improve processing in various industrial resin and plastic applications.

High purity specifications and strict batch consistency are maintained through rigorous QA procedures, ensuring dependable performance in demanding resin and coating formulations.

Stable export supply supported by established logistics channels provides reliable and timely delivery to global customers in the polymer and coatings industries.

Complete SDS, COA and regulatory documentation available supports straightforward compliance with international safety and quality standards for industrial procurement.

Professional technical communication and responsive service together with flexible packaging and bulk supply options help address specific customer requirements in formulation and production.

Hazards Classification

Not classified as hazardous under GHS (typical). This substance presents a low hazard profile under normal conditions of use and storage, although standard precautions for handling liquids should be observed.