Ethyl hydrogen sebacate

Ethyl hydrogen sebacate (CAS 693-55-0), also known as monoethyl sebacate, is a half-ester of sebacic acid used as a reactive intermediate and functional additive in polymer and lubricant formulations.

Where is Ethyl hydrogen sebacate used?

• Plastics and polymer processing: plasticizer and softener that improves flexibility in PVC and specialty polymer compounds
• Lubricants: corrosion inhibitor in metalworking fluids protecting ferrous and non-ferrous surfaces
• Coatings and adhesives: reactive modifier tuning adhesion, flexibility and film integrity in alkyd and polyurethane systems
• It serves as a synthesis intermediate for diester lubricant base stocks and sebacate-based plasticizers.

Good to know: It provides one free carboxylic acid group and one ethyl ester group, a chemically addressable building block for controlled crosslinking, plasticization and surface protection.

Commercial specifications

• Purity confirmed by acid value and ester content
• Drums and intermediate bulk containers