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100 Kilogram |
FOB Price:USD 305.0000 -325.0000 |
Ursodeoxycholic acid 3,7-Dihydroxycholan-24-oic acid 128-13-2
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usage of ursodeoxycholic acid
ursodeoxycholic acid is used for the dissolution of cholesterol gallstones and prevention of drug-induced gallstones. ursodeoxycholic acid can also be used for the treatment of stearrhea
specification
item |
specification |
result |
appearance |
white or almost white powder |
complies |
assay (titration) |
≥99.0% |
99.8% |
solubility |
soluble in alcohol, methylene chloride |
complies |
identification |
ir, tlc and chrominance test |
complies |
melting point |
~202°c |
complies |
specific optical rotation |
58~62o |
|
heavy metals |
20ppm |
|
loss on drying |
1.0% |
0.08% |
sulphated ash |
0.1% |
0.05% |
sesidual solvents |
|
|
methanol≤ 0.3% |
not detected |
|
secondary butyl alcohol ≤0.5% |
not detected |
|
related substance(tlc)
|
lithocholic acid≤0.1% |
complies |
cholic acid≤0.5% |
complies |
|
cdca≤1.0% |
complies |
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