Fluorescent Brightener 393 CAS NO.1533-45-5

Name: Fluorescent Brightener 393

CAS:1533-45-5

MF: C28H18N2O2

Physical and chemical index:

Appearance Yellow greenish powder

Content ≥98.0%

Melting point 353 — 359℃

Mesh size ≥800mesh (or customize)

Maximum absorption spectral wavelength 374nm

Maximum fluorescence emission wavelength 434nm

Tint Near to minor, compared with standard

CIE L*a*b* L*≥102; a*≤-20; b≥50

Fluorescent Intensity (E1%1cm) ≥2000

Volatile content ≤0.3%

Ash content ≤0.5%

Contamination control ≤5’