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Fluorescent Brightener 121



Identification
Name Fluorescent Brightener 121
Synonyms C.I. 50510; 3-(4-Chlorophenyl)-1-(4-sulfamoylphenyl)-2-pyrazoline
Chinese Names name
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Molecular Structure Fluorescent Brightener 121, C.I. 50510, 3-(4-Chlorophenyl)-1-(4-sulfamoylphenyl)-2-pyrazoline CAS #: 2744-49-2 (12224-11-2)
Molecular Formula C15H14ClN3O2S
Molecular Weight 335.81
CAS Registry Number 2744-49-2 (12224-11-2)
EINECS 220-378-2
 
Properties
Density 1.45
Melting point 218-219 ºC
 
List of Suppliers
The Complete List of Suppliers for Fluorescent Brightener 121


2,2'-[9H-Fluoren-9-ylidenebis(4,1-phenyleneoxymethylene)]bis-oxirane  4,4'-(9-Fluorenylidene)diphenol  N-(9-Fluorenylmethoxycarbonyloxy)succinimide  9-Fluorenylmethyl chloroformate  Fluorescein  Fluorescein disodium salt  Fluorescein isothiocyanate  Fluorescein 6-isothiocyanate  Fluorescein isothiocyanate isomer I  Fluorescent Brightener 113  Fluorescent Brightener 119  Fluorescent Brightener 134  Fluorescent Brightener 135  Fluorescent Brightener 184  Fluorescent Brightener 185  Fluorescent Brightener 191  Fluorescent Brightener 204  Fluorescent Brightener 210  Fluorescent Brightener 220  Fluorescent Brightener 251  Fluorescent Brightener 263  Fluorescent Brightener 264  Fluorescent Brightener 28  Fluorescent Brightener 33  Fluorescent Brightener 351  Fluorescent Brightener 353  Fluorescent Brightener 357  Fluorescent Brightener 363  Fluorescent Brightener 367  Fluorescent Brightener 378  Fluorescent brightener 71  Fluorescent brightener 85  Fluorescent brightener 86  Fluorescent Brightener 87  Fluorescent Brightener 90-1  Fluorescent Brightener CBS-X  Fluorescent Brightener ER-III  Fluorescent Brightener KS-N  Fluorexon  Fluorine  3-Fluoroacetanilide  2'-Fluoroacetanilide  4-Fluoroacetanilide  Fluoroacetic acid  Fluoroacetonitrile  3'-Fluoroacetophenone  2'-Fluoroacetophenone  4-Fluoroacetophenone  2-Fluoroadenine 
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