Description

2,3-Dimethylbutane-1,2-Diol is a branched-chain diol characterized by its two vicinal hydroxyl groups on a dimethyl-substituted butane backbone. This unique structure makes it a valuable intermediate and functional additive, offering properties such as polarity, solubility modification, and reactivity for polycondensation. It is primarily sought after by manufacturers in the polymer, specialty chemical, and pharmaceutical sectors. The compound serves as a building block for polyesters, plasticizers, and as a precursor for more complex chemical syntheses.

Application

• Polymer Industry: Used as a monomer or chain extender in the synthesis of specialty polyesters and polyurethanes, influencing flexibility and hydrophilicity.
• Plasticizer Production: Acts as an intermediate for producing ester-based plasticizers, enhancing the workability and durability of polymers like PVC.
• Pharmaceutical Intermediates: Serves as a chiral building block in the synthesis of active pharmaceutical ingredients (APIs) and other fine chemicals.
• Cosmetic & Personal Care: Functions as a humectant and solvent in formulations for skin care products, contributing to moisture retention.
• Chemical Synthesis: Employed as a starting material or intermediate for producing complex molecules, including agrochemicals and dyes.
• Fuel & Lubricant Additives: Can be utilized in the formulation of additives to improve fuel properties or lubricant performance.

Basic Information

Product Name	2,3-Dimethylbutane-1,2-Diol
CAS No.	66553-15-9
Molecular Formula	C6H14O2
Molecular Weight	118.17 g/mol
Synonyms	2,3-Dimethyl-1,2-butanediol; 1,2-Butanediol, 2,3-dimethyl-; 2,3-Dimethylbutane-1,2-diol; 2,3-Dimethyl-2,3-butanediol (pinacol) isomer; Pinacol isomer; Vicinal diol C6
EINECS	Contact for details

Quality Control

Our 2,3-Dimethylbutane-1,2-Diol is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and impurity profiles. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing results from methods including GC, HPLC, and NMR. Our quality commitment supports applications requiring high-purity intermediates, from pharmaceutical synthesis to advanced polymer production.

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). Keep the container tightly sealed to prevent absorption of atmospheric moisture, 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)	0.92 - 0.96
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.