Description White or slightly yellow powder
Identification IR, TLC, Chemical
Appearance of solution Clear
PH 4.5-6.5

Related substances  Nmt 1.0% max peakNmt 3.0% total
Foreigh matter Nmt 6000  10umNmt 600 25um
Specific optical rotation  +58--+64
Sterility Meets the requirements
Bacterial endotoxins LT 0.05IU/mg
Specific volume(bulk) For reference

Specific volume(tapped) For reference
Absorbance 360-390max 0.20 430nm
Assay 96.0-101.0% on sodium basis HPLC
Loss on drying Max 3.0%
2-Ethylhexanoic acid Nmt0.50%
Dimethylaniline Nmt 20ppm
Ethyl acetate Nmt5000ppm
Methanol  Nmt 3000ppm