L-Cystine

Molecular Formla   C₃H₇NO₂S

Formla Weight           121.15

CAS NO. 52-90-4

EINECS  200-158-2

Lightly soluble in water, soluble in Thin Acid or Alkaline Solution

Appearance:  white hexagon crystaline powder, tasteless. 

Specific Rotation:  +8.3°~ +9.5°

Dissolve Status:≥95.0%

Assy:98.0%~101.5%

Heaby Metal:≤10ppm

Chloridum:≤0.04%

Arsenic Salt:≤1ppm

Loss on drying:≤0.5%

Ignition Residue:≤0.1%

PH:4.5~5.5

Ferric Salt: ≤10ppm

Amine Salt:≤0.02%

Sulphate:≤0.03%