118816-34-5

Basic information

• Product Name: 4-[4,5-Bis-(3-chloro-phenyl)-3-(1-methyl-1H-pyridin-4-ylidene)-cyclopenta-1,4-dienyl]-1-methyl-pyridinium; iodide
• Synonyms: 4-[4,5-Bis-(3-chloro-phenyl)-3-(1-methyl-1H-pyridin-4-ylidene)-cyclopenta-1,4-dienyl]-1-methyl-pyridinium; iodide
• CAS NO: 118816-34-5
• Molecular Weight: 597.326
• Mol File: 118816-34-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4-[4,5-Bis-(3-chloro-phenyl)-3-(1-methyl-1H-pyridin-4-ylidene)-cyclopenta-1,4-dienyl]-1-methyl-pyridinium; iodide(CAS DataBase Reference)
• NIST Chemistry Reference: 4-[4,5-Bis-(3-chloro-phenyl)-3-(1-methyl-1H-pyridin-4-ylidene)-cyclopenta-1,4-dienyl]-1-methyl-pyridinium; iodide(118816-34-5)
• EPA Substance Registry System: 4-[4,5-Bis-(3-chloro-phenyl)-3-(1-methyl-1H-pyridin-4-ylidene)-cyclopenta-1,4-dienyl]-1-methyl-pyridinium; iodide(118816-34-5)

Safety Data

• Hazardous Substances Data: 118816-34-5(Hazardous Substances Data)

Upstream product

• 17252-51-6 1,3-di(4-pyridyl)propane 
• 35190-07-9 1,2-bis(3-chlorophenyl)ethane-1,2-dione 
• 61736-46-7 1,3-di(N-methylpyridinium-4-yl)propane diiodide 

Relevant articles and documents

Bridged Cyanine Dyes. Part 1. 1-(N-Methyl-4-pyridinio)-3-(N-methylpyridylene)cyclopenta-1,4-dienes

1,3-Bis(N-methyl-4-pyridinio)propane is condensed with a series of α-diketones to form deep red monocyanine dyes 8.In strongly acidic solutions C-protonation occurs at the central carbon atom.A similar condensation with α-ketoesters yields zwitterionic cy