Basic

CAS No.	12224-11-2
Product Name	Fluorescent brightener 121
Synonyms	4-[3-(4-chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl]benzenesulfonamide
Molecular Formula	C15H14ClN3O2S
Molecular Weight	335.8086

Physical property

Density	1.45g/cm3
Boiling point	535.2°C at 760 mmHg
Flash point	277.5°C
Refractive index	1.682