CAS No 552-21-6 , 3,3',4,4',5,5'-hexahydroxy-2,2'-methylenedi(benzoic acid)

Name: 3,3',4,4',5,5'-hexahydroxy-2,2'-methylenedi(benzoic acid)
Synonyms: 2-[(6-carboxy-2,3,4-trihydroxy-phenyl)methyl]-3,4,5-trihydroxy-benzoic acid;2,2'-Methylenebis[3,4,5-trihydroxybenzoic acid];Methylenedigallic acid;2-[(6-carboxy-2,3,4-trihydroxyphenyl)methyl]-3,4,5-trihydroxybenzoic acid;2-(6-carboxy-2,3,4-trihydroxy-benzyl)-3,4,5-trihydroxy-benzoic acid;3,3',4,4',5,5'-hexahydroxy-2,2'-methylenedi(benzoic acid);
CAS Registry Number:552-21-6
Flash Point: 464.1°C
Boiling Point: 820.9°C at 760 mmHg
Density: 1.909g/cm³
Refractive index: 1.825
Flash Point: 464.1°C
EINECS: 209-005-4
Molecular Weight: 352.24978
InChI: InChI=1S/C15H12O10/c16-8-2-6(14(22)23)4(10(18)12(8)20)1-5-7(15(24)25)3-9(17)13(21)11(5)19/h2-3,16-21H,1H2,(H,22,23)(H,24,25)
Molecular Formula: C15H12O10
Molecular Structure:

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552-21-6 3,3',4,4',5,5'-hexahydroxy-2,2'-methylenedi(benzoic acid)

3,3',4,4',5,5'-hexahydroxy-2,2'-methylenedi(benzoic acid)
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References of 3,3',4,4',5,5'-hexahydroxy-2,2'-methylenedi(benzoic acid)

Title: Methylenedigallic Acid
CAS Registry Number: 552-21-6
CAS Name: 2,2￠-Methylenebis[3,4,5-trihydroxybenzoic acid]
Molecular Formula: C15H12O10
Molecular Weight: 352.25
Percent Composition: C 51.15%, H 3.43%, O 45.42%
Literature 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.