1,3-Diphenyl-4 or 5-sulphoalkyl pyrazolines

Details 1,3-Diphenyl-4 or 5-sulphoalkyl pyrazolines 1,3-Diphenyl-4 or 5-sulphoalkyl pyrazolines

1976-09-23

1978-04-04

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

548379, C07D23106

Patent

active

040827461

ABSTRACT:
Disclosed are anionic optical brightening agents, such agents being 1,3-diphenyl pyrazolines characterized by having, in the 4- or 5-position of the pyrazoline ring, a sulphoalkyl substituent, their production and use.

REFERENCES:
patent: 3836522 (1974-09-01), Somlo et al.
patent: 3865816 (1975-02-01), Mengler
patent: 3939154 (1976-02-01), Bolton et al.
patent: 3997556 (1976-12-01), Bolton et al.
patent: 4003889 (1977-01-01), Bolton et al.

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