Description
NIR-775 Heptamethine Cyanine Bromide is a near-infrared polymethine dye with CAS number 212964-63-1 and empirical formula C₃₆H₃₆BrClN₂. This cyanine bromide shows an absorption maximum of 775 nm in methanol and a molar mass of 564,01 g/mol, aligning it with NIR work around 775 nm. It is Typical applications include fluorescence imaging, spectroscopic labelling, and NIR dye research that benefit from a stated absorption maximum and known molecular mass. The product comes from manufacturer Carl ROTH as a specialised heptamethine cyanine reagent for chemical and analytical workflows. EG number 810-181-5 supports identification in documented laboratory settings. With its heptamethine scaffold, bromide form, and methanol absorption peak at 775 nm, this dye is appropriate for near-infrared studies needing consistent spectral properties and a clearly defined molecular composition.
This article is part of Fluorescent dyes & labels, in Dyes, stains & indicators.
Key features
- CAS number: 212964-63-1
- Pack sizes: 1 g, 5 g, 10 g
- EG nr.: 810-181-5
- Empirical formula: C₃₆H₃₆BrClN₂
- Safety Data Sheet:
Compliance & Safety Information
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Hazard Statements (H-Phrases)
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Questions about S 0451 - FEW Chemicals, 775 nm in MeOH, 1 g, glass
What is this article?
S 0451 - FEW Chemicals, 775 nm in MeOH, 1 g, glass 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 Lab chemicals.
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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