【CAS No.】：116797-51-4     
【Structural Formula】：C3H10ClNO3S
【Molecular weight】：157.60
【Description】:White crystals or crystalline powder, Having a strange taste, could be dissolved in water.
【Packing】 ：25KG/ Paper drum

Product:  DL-Cysteine HCL MONO         CAS No:(116797-51-4)
Item	Specification(AJI92)	Result
Specific rotation[a]D20	-0.5°~ +0.5°	+0.12°
State of solution ( Transmittance)	Clear and colorless ≥ 98.0%	99.4%
Sulfate (SO4)	≤ 0.03%	≤ 0.02%
Iron(Fe)	≤ 3ppm	≤ 1.5ppm
Heavy metals(Pb)	≤ 10ppm	≤ 5.5ppm
other amino acids	Chromatographically Not detectable	Conforms
Loss on drying	8.5-12%	10.30
Residue on ignition(sulfated)	≤ 0.1%	0.06%
Assay	98% to 102.0%	99.65%

Conclusion: The products conform to the AJI92 standard.