L-Threonine

Essential, most likely deficient after lysine.

 

ITEMGB/T21979-2008STANDARD

 C4H9NO3

Content (dry basis)

 

≥98.5 %

 Specific Rotation [a]D20 -26.0° ~-29.0°
 Loss on drying ≤1.0 %
 Residue on ignition ≤0.5 %
 Arsenic (as As) ≤2.0 Mg/kg
 Heavy metals (as Pb) ≤20 Mg/kg