Propyphenazone Propyphenazone 479-92-5
APIs
Molecular Formula: C14H18N2O
Formula Weight: 230.31
CAS No.: 479-92-5
Product Information
characteristics |
A White, crystalline powder or white crystals |
melting point |
About 143°C |
identification |
Up to standard |
clarity and color of alcohol solution |
Clear and colorless |
heavy metals(%) |
≤0.001 |
LIMIT OF free salicylic acid(%) |
≤0.1 |
related SUBSTANCES:LARGEST SINGLE IMPURITY(%) |
≤0.1 |
loss on drying(%) |
≤0.5 |
residue on ignition(%) |
≤0.05 |
chloride(%) |
≤0.014 |
sulfate(%) |
≤0.04 |
readily carbonizable substanceS |
≤Matching Fluid Q |
substances insoluble in sodium carbonate ts |
Clear |
organic volatile impurities |
Up to standard |
TOTAL IMPURITIES(%) |
≤0.25 |
assay(ON DRIED BASIS,%) |
99.5-100.5 |
APPEARANCE |
WHITE OR SLIGHTLY YELLOWISH CRYSTALLINE POWDER |
Identification |
A: MELTING POINT B: IR |
APPEARANCE OF SOLUTION |
clear and colourless |
acidity or alkalinity |
comform |
related substances(tlc) |
≤ 0.2% |
heavy metals |
≤ 0.001% |
loss on drying |
≤ 0.5% |
sulphated ash |
≤ 0.1% |
assay (on the dry base) |
99.0-101.0% |
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