Acetylsalicylic acid 2-Acetoxybenzoic acid Aspirin
acetylsalicylic acid 50-78-2
o-acetylsalicylic acid 2-acetoxybenzoic acid; 2-acetoxybenzoic acid; aspirin usp; aspirin; acetoxybenzoic acid; metronidazolum; 2-(acetyloxy)benzoic acid; 2-(acetyloxy)benzoate; acetyl salicylic acid; acetylsalicylic acid
items |
standard |
---|---|
appearance |
white crystal or crystalline powder |
identification a. ferric acid reaction test |
complies |
identification b.ir-spectrum |
complies |
loss on drying |
≤0.5% |
readily carboaizable substances |
≤fluid q |
residue on ignition |
≤0.05% |
substances insoluble in sodium carbonate ts |
clear |
chloride |
≤0.014% |
sulfate |
≤0.04% |
heavy metals |
≤10ug/g |
limit of free salicylic acid |
≤0.1% |
assay |
99.5%~100.5% |
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