Abstract:
A method for detecting a component of an aqueous liquid comprising adding to the liquid a luminescent dye selected from the group consisting of cyanine, merocyanine and styryl dyes containing at least one sulfonic acid or sulfonate group attached to an aromatic nucleus and reacting the dye with the component. The labeled component is then detected by an optical detection method.
Abstract:
A luminescent cyanine dye having generally the following structure ##STR1## wherein the dotted lines represent one to three rings having 5 to 6 atoms in each ring. R.sub.3, R.sub.4, R.sub.8 and R.sub.9 groups are attached to the rings. At least one of the R.sub.8 and R.sub.9 groups is a sulfonic acid or sulfonate group and at least one of the R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.7 groups is a reactive moiety that reacts with amino, hydroxy or sulfhydryl nucleophiles.
Abstract:
A method for detecting a component of an aqueous liquid comprising adding to the liquid a luminescent dye selected from the group consisting of cyanine, merocyanine and styryl dyes containing at least one sulfonic acid or sulfonate group attached to an aromatic nucleus and reacting the dye with the component. The labeled component is then detected by an optical detection method.
Abstract:
Disclosed are analogues of trimethine cyanine dyes, which are useful for importing fluorescent properties to target materials by covalent and non-covalent association.
Abstract:
Disclosed are analogues of trimethine cyanine dyes which are useful for imparting fluorescent properties to target materials by covalent and non-covalent association. The compounds have the following general formula: ##STR1## optionally substituted by groups R.sup.2 -R.sup.9 wherein groups R.sup.6, R.sup.7, R.sup.8 and R.sup.9 are attached to the rings containing X and Y or, optionally are attached to atoms of the Z.sup.a and Z.sup.b ring structures and groups R.sup.1 -R.sup.9 are chosen to provide desired solubility, reactivity and spectral properties to the fluorescent compounds;A is selected from O, S and NR.sup.11 where R.sup.11 is the substituted amino radical: ##STR2## where R' is selected from hydrogen, a C.sub.1-4 alkyl and aryl and R" is selected from C.sub.1-18 alkyl, aryl, heteroaryl, an acyl radical having from 2-7 carbon atoms, and a thiocarbamoyl radical; Z.sup.a and Z.sup.b each represent a bond or the atoms necessary to complete one, two fused or three fused aromatic rings each ring having five or six atoms, selected from carbon atoms and, optionally, no more than two oxygen, nitrogen and sulphur atoms.
Abstract:
Fluorescent monomethine cyanine complexes rigidized by a two-carbon alkyl group between the nitrogen's of the cyanine's heterocycles are provided and have the structure ##STR1## wherein R.sub.1 through R.sub.7 represent various selected groups or ring structures that may be chosen to provide desired solubility, reactive, or spectral properties.
Abstract:
Fluorescent monomethine cyanine complexes rigidized by a two-carbon alkyl group between the nitrogen's of the cyanine's heterocycles are provided and have the structure ##STR1## wherein R.sub.1 through R.sub.7 represent various selected groups or ring structures that may be chosen to provide desired solubility, reactive, or spectral properties.
Abstract:
Boron complexes of certain bis-heterocyclic compounds are provided. The complexes resemble monomethine cyanines and are useful for imparting fluorescent properties to materials by covalent and noncovalent association. The compounds have the following general formula: ##STR1## wherein the dotted lines Z.sub.1 and Z.sub.2 represent the atoms necessary to complete a structure selected from the group consisting of one ring, two fused rings, and three fused rings, each said ring having five or six atoms, and each said ring comprising carbon atoms and, optionally, no more than two atoms selected from oxygen, nitrogen and sulfur, and R.sub.1 through R.sub.5 represent various atoms or groups and M is Cl or F.
Abstract:
Disclosed are analogues of trimethine cyanine dyes, which are useful for importing fluorescent properties to target materials by covalent and non-covalent association.
Abstract:
Disclosed are analogues of trimethine cyanine dyes which are useful for imparting fluorescent properties to target materials by covalent and non-covalent association. The compounds have general formula (2) optionally substituted by groups R2-R9 wherein groups R6, R7, R8 and R9 are attached to the rings containing X and Y or, optionally are attached to atoms of the Za and Zb ring structures and groups R1-R9 are chosen to provide desired solubility, reactivity and spectralproperties to the fluorescent compounds; A is selected from O, S and NR11 where R11 is the substituted amino radical (a), where R′ is selected from hydrogen, a C1-4 alkyl and aryl and R″ is selected from C1-18 alkyl, aryl, heteroaryl, an acyl radical having from 2-7 carbon atoms, and a thiocarbamoyl radical; Za and Zb each represent a bond or the atoms necessary to complete one, two fused or three fused aromatic rings each ring having five or six atoms, selected from carbon atoms and, optionally, non more than two oxygen, nitrogen and sulphur atoms.