Products List
Contact us
Products List您的当前位置主页 > English > PRODUCTS > APIs >
Product Name:D-Proline
CAS: 344-25-2
white crystal or crystalline powder

The detailed specifications are as below:

Test Items

Appearance White to off-white powder
Solubility Colorless & clear (c=5, Water)
Specific Rotation [20/D] +83.5 to +86.5 Degree (c=4, Water)
Loss on Drying Not more than 0.40%
Residue on Ignition (Sulfate) Not more than 0.1%
Chloride (Cl) Not more than 0.03%
Sulfate (SO4) Not more than 0.03%
Heavy Metals (Pb) Not more than 10ppm
Iron (Fe) Not more than 10ppm
Ammonium Salts (NH4) Not more than 0.02%
Arsenic (As) Not more than 1ppm
Other Amino Acid Not detected by TLC
Assay 98.5% to 101.0%
L-Enantiomer Not more than 0.5%