Beschrijving
Astra blauw FM (C.I. 48048), voor microscopie, Molaire massa (M) 1068,75 g/mol, CAS-nr. 82864-57-1, Brutoformule C47H52CuN14O6S3
Oplosbaar in water (0,5 %), kleuringsreagens voor cellulose.
| Toepassing | voor ACN-kleuring (astra blauw, chrysoïdine, nieuw fuchsine) |
| Absorptiemaximum | 606 nm (in H2O) |
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Questions about Astra blauw FM (C.I. 48048), voor microscopie, 10 g, glas
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Astra blauw FM (C.I. 48048), voor microscopie, 10 g, glas is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Dyes & pigments, inside Dyes, stains & indicators, in Chemicaliën.
A dye dissolves. A pigment is a particle dispersed in a medium. On this shelf they are the colouring substances used as reagents or as markers, specified by Colour Index name or by structure where it is known. The same common name can hide two constitutions.
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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