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1 Kilogram |
Negotiable |
Ascorbyl Glucoside 2-O-α-D-Glucopyranosyl-L-ascorbic Acid 129499-78-1
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Items |
Standards |
Results |
Appearance |
White to cream powder |
Complies |
pH |
2.0~2.5 |
2.4 |
Melting Point |
158℃~163℃ |
161℃ |
Optical rotation |
+186.0o ~ +188.0o |
+186.8o |
Loss on drying |
≤1.0% |
0.11% |
Residue on ignition |
≤0.2% |
0.05% |
Free ascorbic acid |
≤0.1% |
0% |
Free glucose |
≤0.1% |
0% |
Heavy metals(as Pb) |
≤10ppm |
Complies |
Arsenic(AS2O3) |
≤1ppm |
Complies |
Assay |
≥98% |
99.2% |
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