D-Leucine is used in the formation of sterols. It is also used as a selectable marker.
Berislav V. Zlokovic.; David J. Begley.; Daniel G. Chain-Eliash. Blood-brain barrier permeability to leucine-enkephalin,d-Alanine2-d-leucine5-enkephalin and their N-terminal amino acid (tyrosine). Brain Research. 1985, 336, (1), 125-132.
G.L. Kovács.; Zsuzsanna Horváth.; Z. Sarnyai.; Mária Faludi.; Gyula Telegdy. Oxytocin and a C-terminal derivative (Z-prolyl-d-leucine) attenuate tolerance to and dependence on morphine and interact with dopaminergic neurotransmission in the mouse brain. Neuropharmacology. 1985, 24, (5), 413-419.
Precautionary Statements: P260-P201-P280-P304+P340-P405-P501a
Do not breathe dust/fume/gas/mist/vapours/spray. Obtain special instructions before use. Wear protective gloves/protective clothing/eye protection/face protection. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.