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Merck
CN

Specification Sheet

Product Name
Pyrogallol Red

Product Number
223239

Product Brand
sial

CAS Number
32638-88-3

Molecular Weight
400.36

Test

Specification

APPEARANCEDARK RED TO DARK GREEN TO BROWN OR BLACK
 POWDER
INFRARED SPECTRUMCONFORMS TO STRUCTURE.
UV-VISIBLE SPECTRUMC=0.01 G/L IN ETHANOL
 WAVELENGTH MAX 475-515 NM
THIN-LAYERCONSISTENT WITH CONTROL
TITRATION10% H2O (MAXIMUM)
 REVISED MARCH 25, 2005 RJM