L(-)-Thiazolidine-4-carboxylic acid,(CAS:34592-47-7)
Apperance: White powder
Specific Rotation: -137~ -145 degree (C=2,H2O)
Sulphate: 0.03% max
Ammonium: 0.02% max
Iron: 10ppm max
Heavy metal: 10 ppm max
Arsenic: 1ppm max
Other amino acids: Chromatographically Not Detectable
Assay: 98% min
Loss on drying: 0.5% max
