Description

2-Methylpropane-1,2-Diol (CAS NO 558-43-0) is a versatile branched-chain diol valued for its unique combination of solvent properties and reactivity. This compound serves as a crucial intermediate and functional additive in high-performance industrial and specialty chemical formulations. It is primarily sought by manufacturers in the polymer, agrochemical, and pharmaceutical sectors for its role in synthesis and as a humectant or coupling agent.

Application

• Polymer Industry: Used as a monomer or chain extender in the production of specialty polyesters and polyurethanes, contributing to flexibility and moisture resistance.
• Pharmaceutical Intermediates: Acts as a key building block in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs.
• Agrochemical Formulations: Functions as a solvent and carrier in pesticides and herbicides, enhancing stability and efficacy.
• Cosmetics and Personal Care: Employed as a humectant and viscosity modifier in skin care products and lotions.
• Chemical Synthesis: Serves as a versatile intermediate for producing plasticizers, lubricants, and other fine chemicals.
• Industrial Coatings and Inks: Utilized as a coalescing agent and solvent to improve film formation and application properties.

Basic Information

Product Name	2-Methylpropane-1,2-Diol
CAS No.	558-43-0
Molecular Formula	C4H10O2
Molecular Weight	90.12 g/mol
Synonyms	2-Methyl-1,2-propanediol; 2,2-Dimethyl-1,3-propanediol (Neopentyl Glycol) isomer; Isobutylene Glycol; 1,2-Dihydroxy-2-methylpropane; 2-Hydroxymethyl-2-propanol; β-Hydroxyisobutyl alcohol
EINECS	209-189-6

Quality Control

Our 2-Methylpropane-1,2-Diol is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets the required chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee traceability and compliance for your applications.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	0.950 - 0.980
Refractive Index (20°C)	1.430 - 1.440

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