Cas 208644-81-9,3-[(E)-2-(1-Benzenesulfonyl-1H-indol-3-yl)-2-cyano-vinyl]-indole-1-carboxylic acid ethyl ester

208644-81-9

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Basic information

Product Name: 3-[(E)-2-(1-Benzenesulfonyl-1H-indol-3-yl)-2-cyano-vinyl]-indole-1-carboxylic acid ethyl ester
Synonyms: 3-[(E)-2-(1-Benzenesulfonyl-1H-indol-3-yl)-2-cyano-vinyl]-indole-1-carboxylic acid ethyl ester
CAS NO:208644-81-9
Molecular Formula:
Molecular Weight: 495.558
EINECS: N/A
Product Categories: N/A

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: 3-[(E)-2-(1-Benzenesulfonyl-1H-indol-3-yl)-2-cyano-vinyl]-indole-1-carboxylic acid ethyl ester(CAS DataBase Reference)
NIST Chemistry Reference: 3-[(E)-2-(1-Benzenesulfonyl-1H-indol-3-yl)-2-cyano-vinyl]-indole-1-carboxylic acid ethyl ester(208644-81-9)
EPA Substance Registry System: 3-[(E)-2-(1-Benzenesulfonyl-1H-indol-3-yl)-2-cyano-vinyl]-indole-1-carboxylic acid ethyl ester(208644-81-9)

Safety Data

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Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 208644-81-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 208644-81-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,8,6,4 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 208644-81:
(8*2)+(7*0)+(6*8)+(5*6)+(4*4)+(3*4)+(2*8)+(1*1)=139
139 % 10 = 9
So 208644-81-9 is a valid CAS Registry Number.

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208644-81-9Relevant academic research and scientific papers

Dimerization of 1-benzenesulfonyl-3-cyanomethylindole. Synthesis of indolo[2,3-a]carbazoles

Beccalli, Egle M.,Gelmi, Maria Luisa,Erba, Emanuela

, p. 735 - 741 (2007/10/03)

The treatment of 1-benzenesulfonyl-3-cyanomethylindole (1) with LDA, in THF at 0°C, affords 2-(1-benzenesulfonyl-1H-indol-3-yl)-3-(1H-indol-3-yl)acrylonitrile (2) in 79% yield. From 2 , the indolo[2,3-a]carbazole (4) has been obtained in 58% yield.

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