Tetraethylene glycol diheptanoate

Tetraethylene glycol diheptanoate (CAS 70729-68-9), also referred to as TEGDH, is a synthetic diester built from tetraethylene glycol and heptanoic acid.

Where is Tetraethylene glycol diheptanoate used?

• Lubricants: low-viscosity synthetic base fluid for precision oils
• Metalworking fluids: thermal stability and low volatility
• Personal care: moisturizing emollient that improves spreadability and moisture retention
• Plasticizers: polar ester for compatibility and softness in PVC substrates
• Specialty lubricant blends: candidate diluent or co-fluid with biodegradability credentials
• It functions as a lubricant base fluid and plasticizer.

Good to know: Cosmetic-grade material meets purity requirements relevant to personal care formulation standards.

Commercial specifications

• Packaging from drum quantities to IBC; smaller quantities for R&D