Bis-s-triazinylamino-stilbene-2,2'-disulphonic acids, their manu

Details Bis-s-triazinylamino-stilbene-2,2'-disulphonic acids, their manu Bis-s-triazinylamino-stilbene-2,2'-disulphonic acids, their manu

1974-01-23

1976-05-04

Demers, Arthur P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

162162, 25230123, 427158, C07D40312

Patent

active

039547400

ABSTRACT:
The present invention provides new bis-s-triazinylamino-stilbene-2,2'-disulphonic acids of the formula ##SPC1##
And the alkali metal, alkaline earth metal, earth metal, ammonium or amine salt thereof.
The new compounds are valuable optical brighteners, especially for whitening paper in combination with the surface finishing.

REFERENCES:
patent: 3018287 (1962-01-01), Fleck
patent: 3723425 (1973-03-01), Ackermann
Merck Index, 6th Edition, 1952, p. 621.

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