USD $10.00-10.00 / Gram
USD $25.10-28.30 / Gram
USD $10.00-10.00 / Gram
USD $25.10-28.30 / Gram
USD $25.10-28.30 / Gram
USD $10.00-10.00 / Gram
USD $25.10-28.30 / Gram
USD $2.00-10.00 / Kilogram
USD $10.00-10.00 / Gram
description |
white, crystalline granules or as a granular powder |
conforms |
identification |
conforms |
conforms |
solubility |
freely soluble in water, very soluble in boiling water, and slightly soluble in alcohol |
conforms |
assay |
≥99.5% |
99.7% |
specific rotation |
+52.5°~+53.2° |
+52.8° |
chlorides |
≤0.018% |
conforms |
loss on drying |
≤10.0% |
8.6% |
sulfur dioxide |
0.002% |
conforms |
residue on ignition |
≤0.1% |
<0.03% |
starch |
passes test |
conforms |
lead |
≤0.1mg/kg |
conforms |
arsenic |
≤1mg/kg |
conforms |
total bacteria count |
≤1000pcs/g |
20pcs/g |
molds and yeasts |
≤100pcs/g |
30pcs/g |
escherichia coli |
negative |
negative |
conclusion |
qualified with the standard |