134225-11-9

Basic information

• Product Name: cis-1,2-dicyano-1-(1,2-dimethyl-3-indolyl)-2-(2,4,5-trimethyl-3-thienyl)ethene
• CAS NO: 134225-11-9
• Molecular Weight: 345.468
• Mol File: 134225-11-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: cis-1,2-dicyano-1-(1,2-dimethyl-3-indolyl)-2-(2,4,5-trimethyl-3-thienyl)ethene(CAS DataBase Reference)
• NIST Chemistry Reference: cis-1,2-dicyano-1-(1,2-dimethyl-3-indolyl)-2-(2,4,5-trimethyl-3-thienyl)ethene(134225-11-9)
• EPA Substance Registry System: cis-1,2-dicyano-1-(1,2-dimethyl-3-indolyl)-2-(2,4,5-trimethyl-3-thienyl)ethene(134225-11-9)

Safety Data

• Hazardous Substances Data: 134225-11-9(Hazardous Substances Data)

Upstream product

• 112440-49-0 3-(cyanomethyl)-2,4,5-trimethylthiophene 
• 60914-93-4 2-(1,2-dimethyl-1H-indol-3-yl)acetonitrile 

Relevant articles and documents

Thermally Irreversible Photochromic Systems. Reversible Photocyclization of Non-Symmetric Diarylethene Derivatives

Non-symmetric diarylethenes with an indole ring on one end and a thiophene, a benzothiophene, or a pyrrole ring on the other end of the double bond were synthesized in an attempt to get thermally irreversible photochromic compounds having absorption bands at longer wavelengths. 2-(1,2-Dimethyl-3-indolyl)-3-(2,4,5-trimethyl-3-thienyl)maleic anhydride (8a) underwent photoinduced cyclization/ring-opening reactions with relatively high quantum yields (cyclization quantum yield: 0.15; ring-opening quantum yield: 0.40), and the both isomers were thermally stable.The closed-ring form had the absorption maximum at 595 nm with the edge extending to 760 nm.Cyclization/ring-opening reactions of 8a and 2-(1,2-dimethyl-3-indolyl)-3-(2-methyl-3-benzothienyl)maleic anhydride (9a) were induced by Ar ion (488 nm) and He-Ne (633 nm) lasers.