1 Appearance Colourless or white crystal powder, inodorous, with sweet taste Eligible
2 Sepcific optical rotation +52.0 to +53.5 +52.12°
3 Chloride, % ≤ 0.01 0.008
4 Sulfate, % ≤ 0.02 0.002
5 Residue on ignition, % ≤ 0.2 0.03
6 Insoluble matter in alcohol, mg/g ≤ 5 <0.04
7 Loss on drying (%) ≤ 9.5 8.54
8 Heavy metal (Pb, As), ppm% ≤ 0.002 0.0001
9 Arsenic, ppm% ≤ 0.0002 0.0001
10 Germ number (per 1/g) ≤ 1000 100
11 Mould (per 1/g) ≤ 100 60
12 Colom bacillus Negative Negative
13 Purity, % ≥ 99.5 99.5