Description
C.I. Solvent Blue 19 is an organic solvent dye with CAS number 12769-16-3 and the empirical formula C₂₁H₁₆N₂O₂. The molar mass is 328,36 g/mol. Its molecular composition places it among anthraquinone-type or related polycyclic structures commonly employed as solvent dyes. Researchers and formulation chemists can use the material to evaluate colour strength, solubility in organic media and compatibility with resins, oils or other non-aqueous systems. The product is offered by manufacturer Carl ROTH for chemical and materials laboratories that need a clearly identified Colour Index solvent blue for small-scale experiments. Consistent CAS and formula data support traceable use in research records and quality documentation.
Key features
- Purity (HPLC): ≥ 95 %
- Colour: blue to brown or dark purple
- Form: powder
- ¹H-NMR Spectrum: corresponds to assigned structure
- CAS number: 12769-16-3
- Pack sizes: 1 g, 5 g, 10 g
- Empirical formula: C₂₁H₁₆N₂O₂
- Molar mass: 328,36 g/mol
- Colour Index: Solvent Blue 19
- Product type: Solvent dye
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about C.I. Solvent blue 19, 1 g
What is this article?
C.I. Solvent blue 19, 1 g is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Dyes & pigments, inside Dyes, stains & indicators, in Lab chemicals.
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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The category is Dyes, stains & indicators. The sub-category is Dyes & pigments. The catalogue is Lab chemicals.
Shelves beside this one are Fluorescent dyes & labels and Microscopy stains & staining solutions.
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