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  • moiety
  • In these compounds the substituents R and R 1 can assume any position in the phenyl moiety. (google.com)
  • In related embodiments, the chromoionophore compounds further comprise a second chromophoric moiety which. (google.com)
  • In related embodiments, the chromoionophore compounds further comprise a second chromophoric moiety which is insensitive to potassium binding by the TAC ionophore, thus providing for dual wavelength detection and absolute determination of K + concentration. (google.com)
  • acidic
  • It more particularly relates to such record material in the form of sheets coated with color-forming systems comprising chromogenic material, and acidic color developer. (google.com)
  • In these systems, basic chromogenic material and acidic color developer material are contained in a coating on a substrate which, when heated to a suitable temperature, melts or softens to permit said materials to react, thereby producing a colored mark. (google.com)
  • 10. The method of claim 1, wherein the developing agent comprises one or more acidic organic compounds comprising polymeric materials selected from the group consisting of phenolic polymer, alkylphenolacetylene resin, maleic acid/colophonium resin, partially or fully hydrolyzed polymer of maleic anhydride with styrene, ethylene or vinyl methyl ether, carboxymethylene and mixtures of two or more of the foregoing. (patentsencyclopedia.com)
  • precursor
  • Disclosed herein are a solvent for a chromogenic dye-precursor material for a pressure-sensitive recording paper sheet, comprising (1) 30 to 80% by weight of p-monoisopropylbiphenyl or a biphenyl mixture of not less than 80% by weight of p-monoisopropylbiphenyl, not more than 20% by weight of m-monoisopropylbiphenyl. (google.com)
  • As the solvent which dissolves the chromogenic dye-precursor material for the pressure-sensitive recording paper sheet, it is demanded that the solvent fulfills the following requirements. (google.com)
  • 1) To dissolve the chromogenic dye-precursor material to a high concentration. (google.com)
  • As the solvent of the chromogenic dye-precursor material for the pressure-sensitive recording paper sheet, which fulfills the above-mentioned requirements, several solvents have been proposed. (google.com)
  • For instance, (1) a mixed solvent comprising more than 30% by weight of isopropylbiphenyl (represented by the formula: ##STR1## less than 55% by weight of polyisopropylbiphenyl and less than 15% by weight of biphenyl, which is used for preparing a solution of the chromogenic dye-precursor material to be contained in the capsules used for coating onto a sheet material for pressure-sensitive recording paper sheets (U.S. Pat. (google.com)
  • electron
  • An improved heat-sensitive recording material is disclosed comprising a substrate, a binder, a chromogenic material, an electron-accepting color developer which reacts with said chromogenic material to form a color, and a color-stabilizing resin. (google.com)
  • 5. The imaging system of claim 4 wherein said developer material is an electron accepting compound. (google.com)
  • solvent
  • A color-changing marking composition system, suitable for use in the form of crayons and pencils, comprising a first marking composition comprising wax, a dye, which is other than a Leuco dye and which is capable of changing color upon contact with a color change-inducing compound, and a solvent capable. (google.ca)
  • atoms
  • Compounds of the general formula ##STR1## wherein R represents an alkyl group of 1 to 3 carbon atoms or the group N(R2)2, in which R2 represents a hydrogen atom, an alkyl group of 1 to 3 carbon atoms, or an acyl group of 1 to 3 carbon atoms, and R1 has the same meaning as R or is a hydrogen atom, are. (google.com)
  • 3. Compound of claim 1 wherein R is N(R 2 ) 2 in which R 2 is an alkyl group of 1 to 3 carbon atoms. (google.com)
  • species
  • The test contains a liquid medium formulated with growth enhancers and chromogenic compounds selective for Salmonella species. (scigiene.com)
  • These compounds act by combating reactive oxygen and nitrogen species, stimulating the immune system, regulating the expression of genes involved in cell proliferation or apoptosis and modulating hormone metabolism[4- (sapub.org)
  • composition
  • and a second marking composition comprising wax and a color change-inducing compound, which is capable of inducing a color change in a dye in a marking composition with which it is brought in contact. (google.ca)
  • b) a second marking composition comprising a wax and a color change-inducing compound which when contacted with the dye induces a color change in the dye. (google.ca)
  • An imaging system in which images are formed by image-wise exposing a layer containing a chromogenic material and a photosensitive composition in which at least the photosensitive composition is encapsulated in a layer of pressure rupturable capsules. (google.com)
  • 3. The imaging system of claim 2 wherein said chromogenic material is encapsulated with said radiation curable composition. (google.com)
  • molecules
  • The main difficulty is that solutions of nitrite are unstable and have to be stored in the refrigerator and frequently replaced, and it is necessary to attach the diazo compound to molecules that confer stability. (issuu.com)
  • Spectrophotometry is a tool that hinges on the quantitative analysis of molecules depending on how much light is absorbed by colored compounds. (wikipedia.org)
  • In general, when two molecules react, they may form an intermediate compound, which then breaks down. (squarespace.com)
  • activity
  • Compounds that interact with and stimulate the activity of CANNABINOID RECEPTORS. (nih.gov)
  • Compounds 2, 3, and 8 showed potent activity while that of the crude extract was moderate. (ac.be)
  • We have developed a chromogenic reagent to screen for nitrilase activity as an alternative to Nessler's reagent. (rsc.org)
  • developer
  • Exposure and capsule rupture renders the chromogenic material image-wise accessible to the developer for a patterned image forming reaction. (google.com)