Description

3-Methyl-1,5-pentanediol is a versatile aliphatic diol characterized by its branched molecular structure, offering a unique balance of reactivity and performance. This compound is valued for its role as a building block in polymer synthesis and as a solvent or intermediate in high-value formulations. It is essential for manufacturers in the coatings, adhesives, and specialty chemical industries seeking to enhance product flexibility, durability, and compatibility.

Application

• Polymer & Resin Synthesis: Serves as a monomer or chain extender in the production of polyurethanes, polyesters, and alkyd resins, imparting flexibility and hydrolytic stability.
• Coating & Adhesive Formulations: Used as a reactive diluent or modifier in high-performance coatings, inks, and adhesives to adjust viscosity and improve film properties.
• Pharmaceutical & Cosmetic Intermediates: Acts as a key intermediate in the synthesis of active pharmaceutical ingredients (APIs) and personal care product components.
• Plasticizer & Solvent: Functions as a solvent for various resins and as a plasticizer precursor to enhance the workability and properties of plastics.
• Chemical Synthesis: Utilized as a bifunctional building block for creating complex molecules, including lubricants, surfactants, and corrosion inhibitors.

Basic Information

Product Name	3-Methyl-1,5-pentanediol
CAS No.	4457-71-0
Molecular Formula	C6H14O2
Molecular Weight	118.17 g/mol
Synonyms	3-Methylpentane-1,5-diol; 1,5-Dihydroxy-3-methylpentane; 3-Methyl-1,5-pentylene glycol; 3-Methylpentamethylene glycol; MPDiol; 3-Methylpentanediol; 3-Methyl-1,5-dihydroxypentane
EINECS	224-709-1

Quality Control

Our 3-Methyl-1,5-pentanediol is produced under a strict quality management system to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling. Certificates of Analysis (COA) documenting purity, physical properties, and safety data are provided with every shipment 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). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture. Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (Karl Fischer)	≤ 0.5%
Specific Gravity (20°C)	0.950 - 0.980
Refractive Index (20°C)	1.445 - 1.455

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