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148681-83-8

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148681-83-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 148681-83-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,8,6,8 and 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 148681-83:
(8*1)+(7*4)+(6*8)+(5*6)+(4*8)+(3*1)+(2*8)+(1*3)=168
168 % 10 = 8
So 148681-83-8 is a valid CAS Registry Number.

148681-83-8Relevant articles and documents

New Liquid Crystalline Compounds Based on Thiophene

Brettle, Roger,Dunmur, David A.,Marson, Charles M.,Pinol, Milagros,Toriyama, Kazuhisa

, p. 613 - 616 (2007/10/02)

A homologous series of 2-alkyl-5-(4'-cyanophenyl)thiophenes has been prepared and shown to have improved properties for use in liquid crystal displays.The thiophene ring is prepared from a 1-(4'-bromophenyl)-1,4-dioxoalkane, constructed using the Stetter procedure, by the action of Lawessons reagent, and the cyano-group is finally introduced using a copper(I)-mediated exchange reaction.

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