Description
NIR-775 Heptamethine- is a polymethine cyanine dye supplied as the iodide salt, with CAS number 56289-67-9 and empirical formula C₃₂H₃₆ClIN₂. The compound has a molar mass of 611,01 g/mol and an absorption maximum of 775 nm in methanol, locating its principal optical response in the near-infrared region. Within the dyes and pigments category, this material supports work on wavelength-selective detection, optical probe development and related analytical or imaging-oriented experiments. Available from manufacturer Carl ROTH, NIR-775 combines a stated absorption maximum with a defined molecular formula, aiding protocol documentation and batch-to-batch experimental planning. Researchers can incorporate the dye into studies that need a characterised NIR chromophore for methanol-based absorption measurements or comparative polymethine screening. The glass pack format suits routine handling in chemical laboratories focused on controlled optical properties and reproducible dye performance.
This article is part of Fluorescent dyes & labels, in Dyes, stains & indicators.
Key features
- CAS number: 56289-67-9
- Pack sizes: 1 g, 5 g, 10 g
- EG nr.: 633-491-0
- Form: Cyanine iodide
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
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Hazard Statements (H-Phrases)
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Questions about S 0796 - FEW Chemicals, 775 nm in MeOH, 1 g, glass
What is this article?
S 0796 - 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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The category is Dyes, stains & indicators. The sub-category is Fluorescent dyes & labels. The catalogue is Lab chemicals.
Shelves beside this one are Microscopy stains & staining solutions and Dyes & pigments.
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