11-Amino Undecanoic Acid (often abbreviated as 11-AUA) is an organic compound classified as an amino acid with a long hydrocarbon chain. Its chemical formula is C11H23NO2, and it consists of an amino group (-NH2) at the 11th carbon position and a carboxylic acid group (-COOH) at the opposite end of the carbon chain. This structure makes it a unique ω-amino acid (omega-amino acid), meaning the amino group is attached to the terminal carbon of the undecanoic acid chain..
Chemical Formula: C11H23NO2
Appearance: 201.31 g/molIt is typically a white to off-white solid
Solubility: Soluble in water and many organic solvents due to the polar amino and carboxylic groups, but also has a hydrophobic tail due to its long hydrocarbon chain.
Molecular Weight: 201.31 g/mol.
Polymer Production: 11-Amino Undecanoic Acid is a key monomer used in the synthesis of Nylon 11, a bio-based polyamide.
Biodegradable Polymers: Due to its renewable origin (derived from castor oil), 11-AUA is an important building block for developing environmentally friendly, biodegradable plastics.
Specialty Chemicals: It is also used in surface coatings, adhesives, and various specialty chemicals requiring durable and flexible polymer chains.