Merocyanine

Merocyanine I

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
Identifiers
CAS number	58823-12-4
PubChem	23678802
Jmol-3D images	Image 1
SMILES CCCCN1C(=O)C(=CC=CC=C2N(C3=CC=CC=C3O2)CCCS(=O)(=O)[O-])C(=O)N(C1=O)CCCC.[Na+]
Properties
Molecular formula	C₂₆H₃₂N₃NaO₇S
Molar mass	553.60 g/mol
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
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.

References