Fluorescent brightener 121

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
InChI	InChI=1/C15H14ClN3O2S/c16-12-3-1-11(2-4-12)15-9-10-19(18-15)13-5-7-14(8-6-13)22(17,20)21/h1-8H,9-10H2,(H2,17,20,21)
CAS Registry Number	12224-11-2
EINECS	220-378-2
Molecular Structure
Density	1.45g/cm³
Boiling point	535.2°C at 760 mmHg
Refractive index	1.682
Flash point	277.5°C

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