Description

1,7-Heptanediol is a linear aliphatic diol characterized by its two terminal hydroxyl groups separated by a seven-carbon chain, offering a unique balance of hydrophilicity and flexibility. This compound serves as a versatile building block and intermediate, valued for its ability to impart specific physical properties and chain length into final products. It is particularly relevant for manufacturers in the polymer, specialty chemical, and pharmaceutical sectors seeking to synthesize polyesters, plasticizers, or functional additives.

Application

• Polymer Synthesis: A key monomer for producing specialty polyesters and polyurethanes, contributing to flexibility, hydrophilicity, and specific mechanical properties in coatings, adhesives, and elastomers.
• Plasticizer and Modifier: Used as an intermediate to create plasticizers and modifiers that enhance the flexibility and durability of PVC and other polymer systems.
• Crosslinking Agent: Functions as a crosslinker in resin formulations, improving thermal stability and chemical resistance in cured materials.
• Chemical Intermediate: Serves as a precursor in organic synthesis for pharmaceuticals, agrochemicals, and fragrances, where its defined chain length is critical.
• Lubricant and Functional Fluid Base: Utilized in the formulation of synthetic lubricants and functional fluids requiring specific viscosity and stability profiles.
• Cosmetic and Personal Care Ingredients: Acts as an intermediate for emollients, humectants, and viscosity modifiers in cosmetic formulations.

Basic Information

Product Name	1,7-Heptanediol
CAS No.	1121-92-2
Molecular Formula	C7H16O2
Molecular Weight	132.20 g/mol
Synonyms	Heptamethylene Glycol; 1,7-Dihydroxyheptane; Heptane-1,7-diol; NSC 66428; 1,7-Heptylene Glycol; 7-Hydroxy-1-heptanol
EINECS	214-345-8

Quality Control

Our 1,7-Heptanediol is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and physical properties. A Certificate of Analysis (COA) detailing the results is provided with every shipment, ensuring full traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (typically 15-25°C). Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms
Assay (GC/HPLC)	≥ 98.0%
Water Content	≤ 0.5%
Melting Point	Approx. 16 - 20 °C
Heavy Metals	< 10 ppm

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