Enzophenone-8 CAS 131-53-3

CAS: 131-53-3

Molecular Formula: C14H12O4

Molecular Weight: 244.24

EINECS: 205-026-8

Synonyms: enzophenone-8; (2-Hydroxy-4-methoxyphenyl)(2-hydroxphenyl)-methadone(UV24); 2,2''-DIHYDROXY-4-METHOXYBENZOPHENONE/DIOXYBENZONE; BP-8; 2-2'-DihydChemicalbookroxy-4-methoxy-benzophenone(UV-24)

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What is Enzophenone-8 CAS 131-53-3?

Enzophenone-8 is light yellow powder, freezing point 68℃, boiling point 170-175℃, relative density 1.382, insoluble in water. Enzophenone-8 is an ultraviolet absorbent, which is suitable for polyvinyl chloride, ABS resin, acrylic resin, polyurethane, melamine resin, cellulose resin and many other plastics.

Specification

Item	Specification
Melting point	73-75 °C(lit.)
Boiling point	170-175 °C1 mm Hg(lit.)
Density	1.2379 (rough estimate)
Vapor pressure	0-0Pa at 20-25℃
Refractive index	1.5389 (estimate)
Acidity coefficient (pKa)	7.11±0.35(Predicted)
LogP	2.33 at 23.5℃

Application

Enzophenone-8 has good compatibility with the resin, the general dosage is 0.25-3%, and has good light stabilization effect in the paint. Enzophenone-8 is a UV absorber suitable for many plastics such as polyvinyl chloride, ABS resin, acrylic resin, polyurethane, melamine resin, cellulose resin, etc.