Merocyanine

Merocyanine I
Names
	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 ;
3D model (JSmol)	Interactive image;
ChemSpider	4941661 ;
PubChem CID	23678802;
	InChI InChI=1S/C26H33N3O7S.Na/c1-3-5-16-28-24(30)20(25(31)29(26(28)32)17-6-4-2)12-7-10-15-23-27(18-11-19-37(33,34)35)21-13-8-9-14-22(21)36-23;/h7-10,12-15H,3-6,11,16-19H2,1-2H3,(H,33,34,35);/q;+1/p-1/b10-7+,23-15-; Key: DZVCFNFOPIZQKX-LTHRDKTGSA-M ; InChI=1/C26H33N3O7S.Na/c1-3-5-16-28-24(30)20(25(31)29(26(28)32)17-6-4-2)12-7-10-15-23-27(18-11-19-37(33,34)35)21-13-8-9-14-22(21)36-23;/h7-10,12-15H,3-6,11,16-19H2,1-2H3,(H,33,34,35);/q;+1/p-1/b10-7+,23-15-; Key: DZVCFNFOPIZQKX-GKJXPYBMBR;
	SMILES CCCCN1C(=O)C(=C/C=C/C=C\2/N(c3ccccc3O2)CCCS(=O)(=O)[O-])C(=O)N(C1=O)CCCC.[Na+];
Properties
Chemical formula	C26H32N3NaO7S
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). verify (what is ?) Infobox references

Merocyanines are a class of fluorescent dyes typified by merocyanine 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

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