Description

1,7-Heptanediol CAS NO 629-30-1 is a linear aliphatic diol characterized by its seven-carbon chain terminated with two primary hydroxyl groups. This bifunctional structure makes it a valuable building block for polymerization and synthesis, offering a balance of flexibility and reactivity. It is primarily utilized in the production of specialty polymers, resins, and as an intermediate in fine chemical synthesis for industries such as coatings, adhesives, and pharmaceuticals.

Application

• Polymer & Resin Production: Serves as a monomer or chain extender in the synthesis of polyesters, polyurethanes, and alkyd resins, contributing to flexibility and durability.
• Fine Chemical Intermediate: Used in the synthesis of plasticizers, lubricants, and other specialty organic compounds requiring a linear diol spacer.
• Coatings & Adhesives: Imparts improved adhesion, flexibility, and chemical resistance to formulated products.
• Pharmaceutical Intermediates: Acts as a building block in the synthesis of certain active pharmaceutical ingredients (APIs) and drug delivery systems.
• Cosmetic & Personal Care: Can be used as a humectant or solvent in formulations, though specific grade compliance is essential.
• Research & Development: Employed in academic and industrial R&D for novel material science and organic chemistry applications.

Basic Information

Product Name	1,7-Heptanediol
CAS No.	629-30-1
Molecular Formula	C7H16O2
Molecular Weight	132.20 g/mol
Synonyms	Heptamethylene Glycol; 1,7-Dihydroxyheptane; Heptane-1,7-diol; NSC 66430; 1,7-Heptylene Glycol; 7-Hydroxy-1-heptanol
EINECS	211-074-2

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 for key parameters such as assay, water content, and specific impurities is provided with every shipment to guarantee traceability and batch-to-batch consistency for your critical 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 after opening to minimize moisture absorption. Keep away from strong oxidizing agents and acids.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Melting Point	Approx. 16 - 19 °C
Water Content (KF)	≤ 0.5%
Color (APHA)	≤ 50

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