Beschreibung
NIR-787 Heptamethine-cyaninechloride is een polymethinekleurstof met de brutoformule C₃₈H₄₁ClN₂S en CAS-nummer 269401-43-6. Deze nabij-infrarode cyanine vertoont een absorptiemaximum van 787 nm in methanol en een molaire massa van 593,27 g/mol. De structuur van heptamethine-cyaninechloride biedt een goed gekarakteriseerd kader voor studies naar optische eigenschappen in het nabij-infrarode gebied. Het materiaal wordt aangeboden door fabrikant Carl ROTH met EG-nummer 812-345-1 en past in workflows voor kleurstoffen en pigmenten die een gedefinieerde absorptie rond 787 nm vereisen voor methode-instelling, vergelijkend onderzoek of formuleringswerk. Het maakt nauwkeurige hantering mogelijk en is praktisch voor analytische en synthetische laboratoria die gespecialiseerde hoeveelheden kleurstoffen beheren voor de ontwikkeling van beeldvormingsgerichte en optische materialen.
Dit artikel hoort thuis in Fluorescerende kleurstoffen & labels, in Kleurstoffen, vloeistoffen & indicatoren.
Belangrijkste kenmerken
- CAS-nummer: 269401-43-6
- Verpakkingsgrootten: 1 g, 5 g, 10 g
- EG-nr.: 812-345-1
- Brutoformule: C₃₈H₄₁ClN₂S
- Molaire massa: 593,27 g/mol
- Technisch informatieblad:
- Veiligheidsinformatieblad:
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Hazard Statements (H-Phrases)
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Questions about S 0750 - FEW Chemicals, 787 nm in MeOH, 1 g, glas
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S 0750 - FEW Chemicals, 787 nm in MeOH, 1 g, glas is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Fluorescent dyes & labels, inside Dyes, stains & indicators, in Labor- und Industriechemikalien.
A fluorescent dye absorbs at one wavelength and emits at a longer one. As a label it is attached to a protein, a nucleic acid or a cell. Excitation and emission maxima, and the reactive group if it must conjugate, are the specification. The colour name does not tell you the wavelengths.
A dye or a stain binds, or changes colour, so that something invisible becomes visible. An indicator changes at a pH or a redox point. A fluorescent dye absorbs one wavelength and emits another, which is how a microscope or a plate reader picks it out. The excitation and emission, or the transition interval, are the specification. The colour name on the label is not. Structures are on PubChem under IUPAC names. Methods are in the PubMed literature.
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