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Heptaethylene glycol

CAS Number
5617-32-3
EC Number
227-040-3
Chemical Formula
C14H30O8
Molecular Weight
326.38 g/mol

Description

Heptaethylene glycol (CAS 5617-32-3 ) is a mid-chain polyethylene glycol diol used as a solvent, humectant, and functional intermediate across pharmaceutical, cosmetic, and industrial formulations. Its defined chain length and dual hydroxyl end groups make it a precise building block where molecular uniformity matters for performance or regulatory purposes in various chemical processes. In pharmaceutical and cosmetic formulations, it functions as a carrier and humectant, helping to solubilize active ingredients and retain moisture in topical products for better skin absorption. Printing ink and packaging manufacturers use it as a plasticizer and dispersing aid to improve film flexibility and pigment compatibility across different substrate types and printing methods. Textile and leather processing operations incorporate it as a softening agent and processing solvent to modify substrate feel and improve dye uptake during the manufacturing stages. Lubricant and metalworking formulators apply it as a base component or additive where water-soluble, low-volatility glycol chemistry is required for high-performance industrial applications. Heptaethylene glycol is supplied as a clear viscous liquid. It is available primarily at high-purity grades suited to pharmaceutical research, specialty chemical synthesis, and performance formulation. Packaging typically ranges from laboratory-scale quantities to drum volumes, reflecting its positioning as a specialty intermediate rather than a commodity glycol for large scale use. Contact us for supply of Heptaethylene glycol Request Quote

Other Names (Synonyms)

3,6,9,12,15,18-hexaoxaeicosane-1,20-diol | 3,6,9,12,15,18-hexaoxaicosane-1,20-diol | RefChem:1086421 | HO-PEG7-OH | 2-[2-[2-[2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Boiling Point241-244 °C
Density1.13
ColorColourless
FormOil
Refractive Index1.4653 (589.3 nm 20℃)

Trade & Regulatory

HS Code2909498090