L-Tryptophan

Essential, usually deficient in piglet feed.

ITEMSTANDARD DATA
descriptionwhite crystalline or buff crystalline powder, scentless, mildly bitter taste
content98.5-101.5 %
specific rotary power-30.0°-32.5°
solution transmittancy≥ 95.0 %
Chloride≤ 0.02 %
Sulphate≤ 0.02 %
Ammonia (NH4+)≤ 0.02 %
other amidogen≤ 0.5 %
heavy metal (as Pb)≤ 0.001 %
loss on drying≤ 0.5 %
residue on ignition≤ 0.1 %
iron (as Fe)≤ 0.002 %
As≤ 0.0001 %
Lead≤ 0.0001 %