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Product Name: Donepezil intermediate-1
CAS NO.: 4803-74-1
Description: Name:5,6-Dimethoxy-2- (pyridine-4-yl)methylene-indian-1-one
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Specifications |
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Appearance |
light yellow powder |
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Assay(HPLC) |
not less than 99.0% |
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Loss on Drying |
not more than 0.5% |
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Residue on ignition |
not more than 0.2% |
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Heavy Metal |
not more than 20ppm | |
