62796-23-0

Basic information

• Product Name: MEROCYANINE 540
• Synonyms: 2-(4-(1,3-dibutyltetrahydro-4,6-dioxo-2-3(2h)-benzoxazolepropanesulfonicaci;2-[4-(1,3-dibutyltetrahydro-4,6-dioxo-2-3(2h)-benzoxazolepropanesulfonicaci;mc540;MEROCYANINE 540;MEROCYANINE 540, FOR FLUORESCENCE;2-[4-(1,3-Dibutyl-1,3,4,6-tetrahydro-4,6-dioxo-2-thioxopyrimidin-5(2H)-ylidene)-2-butenylidene]-3(2H)-benzoxazolepropane-1-sulfonic acid sodium salt;Merocyanine 540,99%;Nsc369286
• CAS NO: 62796-23-0
• Molecular Formula: C₂₆H₃₂N₃O₆S₂*Na
• Molecular Weight: 569.67
• Product Categories: AlphabeticalOrganic Conductors and Photovoltaics: OFET and OPV Materials;Fluorescent Indicators and Probes;Dyes;Lipophilic and Membrane Probes;Organic Photovoltaic (OPV) Materials
• Mol File: 62796-23-0.mol
• Article Data: 2

Chemical Properties

• Melting Point: 285 °C (dec.)(lit.)
• Appearance: /
• Storage Temp.: 2-8°C
• Solubility: DMSO: soluble
• BRN: 3585252
• CAS DataBase Reference: MEROCYANINE 540(CAS DataBase Reference)
• NIST Chemistry Reference: MEROCYANINE 540(62796-23-0)
• EPA Substance Registry System: MEROCYANINE 540(62796-23-0)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• RTECS: DM4866500
• F: 3-8-10
• Hazardous Substances Data: 62796-23-0(Hazardous Substances Data)

Usage

Uses

Different sources of media describe the Uses of 62796-23-0 differently. You can refer to the following data:
1. Sensitive probe for membrane potential. Selective staining of immature hemopoietic cells in flow cytometry.
2. Merocyanine 540 is a fluorescent axonal stain.

InChI:InChI=1/C26H33N3O6S2.Na/c1-3-5-16-28-24(30)20(25(31)29(26(28)36)17-6-4-2)12-7-10-15-23-27(18-11-19-37(32,33)34)21-13-8-9-14-22(21)35-23;/h7-10,12-15H,3-6,11,16-19H2,1-2H3,(H,32,33,34);/q;+1/p-1

Relevant articles and documents

Photoisomerization of a sterically constrained merocyanine dye

A particular concern regarding the photophysical properties of merocyanine 540 derivatives, and related cyanine dyes, involves identifying which double bond in the central polyenic bridge undergoes light-induced isomerization. In order to address this issue we have synthesized a novel merocyanine dye in which the first double bond is built into a cyclic structure that prevents isomerization at this site. Contrary to expectations, the dye photoisomerizes with reasonable efficiency, such that the quantum yields of fluorescence and intersystem crossing to the triplet manifold are kept small. For this dye, isomerization must take place at the central double bond. It is further shown that the strategy of inserting bulky or constraining groups into the polyenic bridge is not a viable approach for the development of highly fluorescent merocyanine dyes.