L-Leucine,food grade,pharma grade L-Leucine Molecular formula: C6H13NO2Molecular weight: 131.17CAS No.: 61-90-5Description: White small crystal flakes or crystalline powder, no optical rotation, bitter in taste.Specification: ItemsStandardAssay98.5%~101.0%Specific rotation[α]D20+14.5°~+16.5°pH2.5~3.5Transmittance≥98.0%Loss in drying≤0.20%Residue on ignition≤0.10%Chloride[Cl-]≤0.02%Sulfate[SO42-]≤ ...