Features Synonym: (R)-2-Amino-4-methylpentanoic acid CAS#: 61-90-5 Molecular Formula: 131.17 Molecular Weight: C₆H₁₃NO₂  

Synthetic cytokinin growth regulator.

CAS: 61-90-5 EC No: 200-522-0 MDL No: MFCD00002617 RTECS: OH2850000 Powder Molecular Formula: C₆H₁₃NO₂ MW: 131.17 Optical Rotation: [α]20/D +15.5±0.5°, c = 5% in 5M HCl

Leucine is a branched-chain α-amino acid. Leucine is classified as a hydrophobic amino acid due to its aliphatic isobutyl side chain. Leucine has been used as a molecular marker in the recovery of DNA from palaeontological samples for PCR analysis.