Heptaethylene glycol

Heptaethylene glycol (CAS 5617-32-3) is a mid-chain polyethylene glycol diol used as a solvent, humectant, and functional intermediate.

Where is Heptaethylene glycol used?

• Pharmaceutical and cosmetic formulations: carrier and humectant that solubilizes active ingredients and retains moisture in topical products
• Printing ink and packaging: plasticizer and dispersing aid for film flexibility and pigment compatibility
• Textile and leather processing: softening agent and processing solvent that modifies substrate feel and improves dye uptake
• Lubricant and metalworking: base component or additive where water-soluble, low-volatility glycol chemistry is required
• Its defined chain length and dual hydroxyl end groups make it a precise building block where molecular uniformity matters.

Commercial specifications

• high-purity grades suited to pharmaceutical research, specialty chemical synthesis, and performance formulation
• packaging from laboratory-scale quantities to drum volumes