Distyrylbiphenyl compounds

Organic compounds -- part of the class 532-570 series – Organic compounds – Sulfonic acids or salts thereof

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544107, 544410, 546184, 548354, 548579, 358413, 562 83, 562 84, C07C30932, C07C60446

Patent

active

051459914

ABSTRACT:
Distyrylbiphenyl compounds of formula ##STR1## wherein R.sub.1, R.sub.3, R.sub.6 and R.sub.7 are halogen, hydrogen, C.sub.1 -C.sub.4 alkyl or cyano, and M.sup..sym. is a salt-forming cation, are used as fluorescent whitening agents in solid and, preferably, liquid, detergent compositions. They are distinguished by good white effects and insignificant spotting behavior.

REFERENCES:
patent: 3627758 (1971-12-01), Weber et al.
patent: 3849485 (1974-11-01), Weber
patent: 3956395 (1976-05-01), Meyer
patent: 3959340 (1976-05-01), Weber
patent: 3980713 (1976-09-01), Matsunaga et al.
patent: 3984399 (1976-10-01), Weber et al.
patent: 4147648 (1979-04-01), Gunter et al.
patent: 4424170 (1984-01-01), Weber

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