Cation-sensing composite structure and compounds for use therein
First Claim
1. A fluorescent ionophoric compound having the general formula ##STR7## wherein m and n are independently 0 or 1,R is at least one of an electron withdrawing group and a polarizable group, andZ is oxygen or N--R" where R" is H or a C1 to C4 alkyl group,said compound having an absorbance maximum in the range of 350 to 440 nm.
2 Assignments
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Accused Products
Abstract
A fluorescent ionophoric compound comprises a cryptand portion and a coumarin portion substituted at the 3-position with an electron withdrawing or polarizable group. The compound, which exhibits good photostability, can be incorporated into cation-sensing composite structures useful in biological and environmental testing, which can be used with conventional glass optics, by means of convenient points of covalent attachment.
23 Citations
25 Claims
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1. A fluorescent ionophoric compound having the general formula ##STR7## wherein m and n are independently 0 or 1,
R is at least one of an electron withdrawing group and a polarizable group, and Z is oxygen or N--R" where R" is H or a C1 to C4 alkyl group, said compound having an absorbance maximum in the range of 350 to 440 nm.
Specification