|Appearance||white crystalline powder|
|Heavy metals||10ppm max|
|Other amino acids||not detectable|
|Loss on drying||8.5～12.0%|
|Residue on ignition||0.10% max|
|Storage||1 years in seal and shading place|
L-Cysteine hydrochloride monohydrate 7048-04-6 is used in a protocol for the separation of dorsal root ganglion neurons. It has also been used in a study to examine its effect as an inhibitor in preventing enzymatic browning in apples.