7-Styryl coumarin derivatives

Details 7-Styryl coumarin derivatives 7-Styryl coumarin derivatives

1981-09-30

1983-05-31

Fan, Jane T.

Harness for working animal

549220, 549280, 548220, 548256, C09B 2310

Patent

active

043862004

ABSTRACT:
A non-chromophoric conjugated derivative of 7-styryl coumarin for use as an optical brightener in which the lactone ring of the coumarinyl group may have a benzene ring fused to it to form a 3,4-benzocoumarinyl-7 group, the phenyl group of the styryl is substituted by a conjugated group which contains a group derived from an acid in its conjugation and which group is so located as to conjugate with the ethylene group.

REFERENCES:
patent: 4299894 (1981-11-01), Klose et al.
Arch. Pharmaz. (305), 1972, pp. 124-134.

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