Description

2-Ethyl-2-Methyl-1,3-Propanediol (CAS NO 77-84-9) is a versatile branched-chain diol valued for its unique chemical structure and bifunctional reactivity. This compound is a critical intermediate in the synthesis of high-performance polymers, resins, and specialty chemicals, offering excellent solvency and modification properties. It is essential for manufacturers in the coatings, adhesives, and pharmaceutical industries seeking to enhance product durability and performance.

Application

• As a key monomer and chain extender in the production of polyester and alkyd resins for coatings and paints.
• As a building block for plasticizers, improving flexibility and low-temperature performance in PVC and other polymers.
• In the synthesis of lubricant additives and synthetic esters for industrial fluids.
• As a reactive intermediate in the manufacture of pharmaceuticals and active pharmaceutical ingredients (APIs).
• As a cross-linking agent and modifier in adhesive and sealant formulations.
• In the production of unsaturated polyester resins (UPR) for fiberglass-reinforced composites.
• As a solvent and chemical intermediate in various organic synthesis processes.

Basic Information

Product Name	2-Ethyl-2-Methyl-1,3-Propanediol
CAS No.	77-84-9
Molecular Formula	C6H14O2
Molecular Weight	118.17 g/mol
Synonyms	2-Ethyl-2-methylpropane-1,3-diol; 2-Methyl-2-ethyl-1,3-propanediol; 1,3-Propanediol, 2-ethyl-2-methyl-; Ethylmethylpropanediol; EMPD; 2,2-Diethyl-1,3-propanediol isomer; Neopentyl glycol derivative
EINECS	201-063-1

Quality Control

Our 2-Ethyl-2-Methyl-1,3-Propanediol is produced under a stringent quality management system to ensure batch-to-batch consistency and reliability. We provide comprehensive analytical testing, including purity assay and impurity profiling, to meet the specific requirements of industrial and fine chemical applications. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid / White crystalline solid
Identification (IR)	Conforms
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Melting Point	38 - 42 °C
Heavy Metals	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.