Diphenolic Acid
Structural Formula Vector Image
Title: Diphenolic Acid
CAS Registry Number: 126-00-1
CAS Name: 4-Hydroxy-g-(4-hydroxyphenyl)-g-methylbenzenebutanoic acid
Additional Names: 4,4-bis[4¢-hydroxyphenyl]pentanoic acid; g,g-bis-(p-hydroxyphenyl)valeric acid; DPA
Molecular Formula: C17H18O4
Molecular Weight: 286.32
Percent Composition: C 71.31%, H 6.34%, O 22.35%
Literature References: Prepd by condensing 2.25-4.0 moles of phenol with one mole of levulinic acid in the presence of HCl: GB 768206 (1957 to S. C. Johnson & Son); from one mole of phenol, 0.5 mole levulinic acid and HCl, H2SO4 or H3PO4: Bader, Kantowicz, J. Am. Chem. Soc. 76, 4465 (1954); Bader, US 2933520 (1960 to S. C. Johnson & Son).
Properties: Crystals from hot water. Higher melting modification, mp 171-172°. Appreciably sol in hot water; sol in acetone, acetic acid, ethanol, isopropanol, methyl ethyl ketone.
Melting point: mp 171-172°
Use: Intermediate for surface coatings, lubricating oil additives, cosmetics, surfactants, plasticizers, textile chemicals.

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