TECHNICAL DATA SHEET

Product name:

Fluorescent Brightener 393

CAS NO.:

1533-45-5

C.I.:

393

EINECS:

216-245-3

Chemical formula:

C28H18N2O2

Molecularstructure:

Appearance:
Shade:
Strength:
Odor:
Specific gravity:
PH value:
Max spectrum absorption
wavelength:
Max fluorescence emission
wavelength:
Melting point:
Purity:
Ash:
Volatile content:

Yellowrish/Greenrish powder
Similar to the standard
100±3%
Weak odor
Not available
not tested

374nm(ethanol)

434nm
365℃-370℃
≥98.5%
≤0.5%
≤0.5%

Propertyand application:

Mainly be used in whitening of polyester fabric and its blends with strong fluorescence, high whitening performance, and good fastness to light, wash and excellent fastness to sublimation.