optical brightenerKSB(FBA369) CAS 1087737-53-8

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CAS:1087737-53-8

Molecular Formula:C26H18N2O2

Molecular Weight:390.43

EINECS:NA

optical brightenerKSB(FBA369) has the characteristics of good compatibility, easy precipitation, small amount of addition, good whitening effect, excellent heat and light resistance, and does not react with blowing agents and crosslinkers. optical brightenerKSB(FBA369) is a yellow-green powder with a blue-white fluorescent color. Maximum absorption wavelength 370nm. optical brightenerKSB(FBA369) is suitable for brightening and brightening polyester fibers and polyester blended fabrics.

Item	Specification
Melting point	200.5-201.5 °C
Boiling point	606.0±40.0 °C(Predicted)
Density	1.21±0.1 g/cm3(Predicted)
Acidity coefficient (pKa)	11.70±0.50(Predicted)