
TY  - JOUR
A1  - Leaver, IH 
A1  - Ramsay, GC 
A1  - Stephens, LJ 
T1  - Photochemical studies of a sulphonated derivative of 1,3-Diphenyl-2-pyrazoline
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1975
VL  - 28
IS  - 9
SP  - 2083
EP  - 2088
KW  - 
UR  - https://doi.org/10.1071/CH9752083 
N2  - The photochemistry of the sulphonated pyrazoline fluorescent whitening agent sodium 4-(3?-phenyl-2?-pyrazolin-1?-yl)benzenesulphonate has been examined in aqueous solution, in films of poly(vinyl alcohol) and in the wool fibre. Photooxidation to give the pyrazole occurs almost quantitatively in solution, but accounts for only half of the photoproducts formed in the polymer. In the wool fibre, pyrazole formation accounts for more than half of the pyrazoline whitener destroyed during exposure to simulated sunlight. 
ER  -

