摘要:
The present invention concerns compositions, methods of production and methods of use of polydiazoaminotyrosine (DAT), a novel organic semiconductor. In preferred embodiments, the DAT is oxidized (O-DAT). In certain embodiments, recognition complexes comprising DAT operably coupled to a binding moiety are provided. The recognition complexes are of use for detection, identification and/or neutralization of various analytes. In alternative embodiments, DAT in combination with a source of activating radiation may be used to neutralize various analytes, such as anthrax spores.
摘要:
Novel improved mixed crystals of monoazo dyes of formula (I), wherein R1 is methyl or chlorine, and R2, R3 and R4 are each independently of the others hydrogen, methyl or chlorine, which dyes have been laked with alkaline earth metal cations and ammonium cations in a molar ratio of about 1:2. The mixed crystals are single-phase. The products according to the invention, while having a fine particle size, exhibit substantially better fasteness properties than similar known products and are therefore excellently suitable as tinctorially strong pigments. In addition, the part played by after-treatment is less critical. Also claimed is a process for the preparation of a pigment of formula (II), wherein R1 is methyl or chlorine, R2, R3 and R4 are each independently of the others hydrogen, methyl or chlorine, R5, R6, Rnull7null and R8 are hydrogen or methyl, and E is Mg, Ca or Sr, by crystallisation from an inert hydrophilic liquid in the presence of solvated cations Enullnull and NR5R6R7R8null, wherein the pigment is a single-phase mixed crystal and x is a number from 0.33 to 0.62 and y is a number from 0.76 to 1.34, and the concentration of solvated cations Enullnull at the beginning of the crystallisation is higher than the concentration of solvated cations NR5R6R7R8null. Three embodiments are disclosed.
摘要:
A compound which can be used as a dye and is represented by the following general formulae (I), (II) and (III). In the general formulae, A and B each independently represents a monovalent heterocyclic group bonded to an azo group by a carbon atom of the monovalent heterocyclic group; m and n each independently represents one of 0 and 1; and M represents one of a hydrogen atom and a monovalent positive ion. 1
摘要:
An optical recording medium dye is described. The optical recording medium dye is an azo metal chelate compound, wherein the azo metal chelate compound comprises the following structure: 1 wherein R1 is a hydrogen atom, a C1-6 straight chain or branched alkyl group, an amino group, an alkylamino group or a tolylamino group; R2 is a hydrogen atom, a hydroxyl group, a halogen atom, an ether group, a C1-6 straight chain or branched alkyl group; R3 is a hydrogen atom, a C1-6 straight chain or branched alkyl group; R4 is a hydrogen atom, a C1-6 straight chain or branched alkyl group or a halogen atom; A3 is a residue forming a heterocyclic ring derivative together with a carbon atom and a nitrogen atom.
摘要:
Compounds of the formula 1 where the symbols have the meaning described in the application, have retinoid-like or retinoid antagonist-like biological activity.
摘要:
The invention relates to novel soluble pigment precursors possessing not only higher thermal stability but also improved solubility characteristics and to a process for mass coloration of high temperature polymers that utilizes these novel soluble pigment precursors. The pigment precursors of the invention are essentially of the formula A(B)x(I)where x is an integer from 1 to 8, A is the radical of a chromophore of the quinacridone, anthraquinone, perylene, indigo, quinophthalone, indanthrone, isoindolinone, isoindoline, dioxazine, azo, phthalocyanine or diketopyrrolopyrrole series, this radical being linked with x B groups via one or more heteroatoms, these heteroatoms being selected from the group consisting of N, O and S and forming part of the radical A, and B is hydrogen or a group of the formula 1 although at least one B group is not hydrogen and when x is from 2 to 8 the B groups may be identical or different, E1 is oxygen or is selected from the group consisting of methylene, methyleneoxy and ethylene, each member of the group being unsubstituted or substituted by one R5 or by 2 radicals, R5 and R6, or is two separate radicals, R7 and R8, R7 being attached to the same atom as R1 and R8 to the same atom as R4, E2 is selected from the group consisting of methylene, ethylene, propylene and butylene, each member of the group being unsubstituted or substituted by one R9 or by 2 radicals, R9 and R10, or is two separate radicals, R11 and R12, R11 being attached to the same atom as R1 and R12 to the same atom as R4, G1 is O or N(R13), R1 is hydrogen, methyl, ethyl, methoxy or ethoxy, R2 and R3 are independently hydrogen, C1-C8alkyl, C1-C8alkoxy, C1-C8alkoxy-C2-C8alkylene or C1-C8alkoxy-C2-C8alkyleneoxy, R4 is hydrogen, C1-C8alkyl, C1-C8alkoxy, C1-C8alkoxy-C2-C8alkylene, C1-C8alkoxy-C2-C8alkyleneoxy, C5-C6cycloalkyl, C5-C6cycloalkoxy, phenyl, phenoxy or a 5- or 6-membered, saturated or singly to triply unsaturated heterocyclic radical, R5, R6, R9, R10 and R12 are independently C1-C8alkyl or C1-C8alkoxy, or R6 and R9 together are a direct bond, R7 and R8 are independently hydrogen, C1-C8alkyl, C1-C8alkoxy, C1-C8alkoxy-C2-C8alkylene or C1-C8alkoxy-C2-C8alkyleneoxy, R11, is hydrogen, C1-C8alkyl or C1-C8alkoxy, R13 is methyl or ethyl, and R14 is C1-C8alkyl, C5-C6cycloalkyl, phenyl or a 5- or 6-membered, saturated or singly to triply unsaturated heterocyclic radical. Also claimed are some materials pigmented according to the invention.