L-Cysteine Hydrochloride Anhydrous, Non Animal Source

Specific rotation [α]_D²⁰:

+5.6° to +8.9°

Assay:

98.0% to 101.0%

Loss on drying:

1.0% max.

Iron [Fe]:

10ppm max.

Heavy metals [Pb]:

10ppm max.

Arsenic [As₂O₃]:

1ppm max.

Residue on ignition [sulfated]:

0.10% max.

Other amino acids:

Not detectable (Chromatographically)

State of solution:

Transmittance:

Clear and colorless

98.0% min.

Total Plate Count:

Less than 3000 cfu/g

E. Coli:

Negative

Salmonella:

Negative