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Merocyanine I
Skeletal formula of merocyanine I
Space-filling model of the merocyanine I molecule
IUPAC name
sodium 3-[(2Z)-2-[(E)-4-(1,3-Dibutyl-2,4,6-trioxo-5-hexahydropyrimidinylidene)but-2-enylidene]-1,3-benzoxazol-3-yl]propane-1-sulfonate
58823-12-4 YesY
ChemSpider 4941661 N
Jmol-3D images Image
PubChem 23678802
Molar mass 553.60 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Merocyanines are a class of fluorescent dyes typified by merocycanine I.

These dyes are usually intensely colored and have large extinction coefficients.

Merocyanine 540 was the first fluorescent dye used for measuring membrane potential,[1] while Brooker's merocyanine and related compounds are notable for their solvatochromatic properties.

Merocyanine 540 differs from merocyanine I by the replacement of an oxygen atom with a sulfur atom

See also[edit]