2,3,4-Trihydroxybenzaldehyde | CAS:2144-08-3

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2,3,4-Trihydroxybenzaldehyde

Synonyms：
Pyrogallol-4-carboxaldehyde
EINECS 218-404-2
2,3,4-trishydroxybenzaldehyde
2,3,4-trihydroxy benzaldehyde
protocataculaldehyde
Benzaldehyde,2,3,4-trihydroxy
Benzaldehyde, 2,3,4-trihydroxy-
2,3,4,5,6-PENTAFLUOROPHENYL 4-BROMO-2-CHLOROBENZENESULPHONATE
2,3,4-Trihydroxy-benzaldehyd
 
Molecular Formula: C7H6O4
Molecular Weight: 154.12000

Appearance and properties: light yellow needle-like crystals (water). m.p.161-162℃, irritating.
Density: 1.598 g/cm3
Boiling point: 301.9ºC at 760 mmHg
Melting point: 159-161 °C(lit.)
Flash point: 112ºC
Refractive index: 1.734
 
Stability: Stable under normal temperatures and pressures.
Storage conditions: Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Items of Analysis Standard of Analysis Test Results
Appearance Light yellow crystalline powder Light yellow crystalline powder
Assay ≥99.5% 99.75%
Loss on Drying ≤0.2% 0.15%
Melting point 161℃～163℃ 161℃～162℃
Residue on ignition ≤0.1% 0.03%
Heavy metal ≤20ppm ＜20ppm
As ≤3ppm ＜3ppm
Pb ≤2ppm ＜2ppm
Conclusion Conforms to Factory Standard
 

 



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