USD $3.00-10.00 / Kilogram
USD $15.00-50.00 / Kilogram
USD $15.00-50.00 / Kilogram
USD $10.00-10.00 / Gram
USD $10.00-10.00 / Gram
USD $10.00-10.00 / Gram
USD $10.00-10.00 / Gram
≥98.0% min
tolvaptan
appearance |
a white or off-white crystalline powder |
identification |
hplc:retention time of the major peaks is consistent with the standard preparation as obtained in the assay |
|
ir: the infrared absorption spectrophotometry is accordant with the contrast spectrophotometry |
|
chloride identification: positive reaction |
ph |
5.5~7.5 |
melting point |
223~228℃ |
water |
≤0.5% |
related substance |
any individual impurity:≤0.1% total impurities:≤0.3% |
residual solvent |
methyl alcohol ≤0.3% ethyl alcohol ≤0.5% dichloromethane ≤0.06% ethy acetate ≤0.5% pyridine ≤0.02% |
chloride |
≤0.014% |
residue on ignition |
≤0.1% |
heavy metals |
≤10ppm |
assay |
98.0~102.0% of tolyaptan(c26h25cin2o3) calculated on the dry anhydrous
|