Amino Acid Reference is a comprehensive and handy reference tool for students and researchers.

Amino Acid Reference provides information for 20 amino acids:
- Chemical structures
- Three letter codes and one letter codes
- Chemical formula and molecular formula
- Molecular weight
- Polarity
- Charge
- Acidity
- Hydroxyl containing
- Sulfur containing
- Aromatic
- Achiral
- pK-Values of amine group, carboxylic acid group, and side chain
- Essential
- Codons
- Hydropathy index
- Absorbance
- CAS #
- Functions and dietary source.

Amino Acids can be searched or filtered by 11 properties, including Polarity, Charge, Essential, Acidity, Codon, Hydroxyl containing, Sulfur containing, Aromatic, Archiral, Hydropathy index, Absorbance, etc.

A codon table is also provided.