Nomenclature
CAS number: 552-21-6
2,2′-Methylenebis[3,4,5-trihydroxybenzoic acid].
C
15H
12O
10; mol wt 352.25.
C 51.15%, H 3.43%, O 45.42%.
Description and references
Made by heating a mixture of gallic acid, formaldehyde
and dil HCl on the water bath.
Properties
Crystals. Insol in cold, sparingly in hot water;
sol in alcohol, alkalies.