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337469-89-3

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337469-89-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 337469-89-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,7,4,6 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 337469-89:
(8*3)+(7*3)+(6*7)+(5*4)+(4*6)+(3*9)+(2*8)+(1*9)=183
183 % 10 = 3
So 337469-89-3 is a valid CAS Registry Number.

337469-89-3Relevant articles and documents

Synthesis and Liquid Crystal Behaviour of Further 4,4"-Disubstituted 2'-Fluoro-1,1':4',1"-Terphenyls

Chan, L. K. M.,Gray, G. W.,Lacey, D.,Toyne, K. J.

, p. 209 - 240 (2007/10/02)

Further to earlier work on the liquid crystal properties of fluoro-1,1':4',1"-terphenyls we have now extended this series to include terminally fluoro- and cyano-substituted 2'-fluoro-1,1':4',1"-terphenyls, chiral 2'-fluoro-1,1':4',1"-terphenyls, and esters derived from 2'-fluoro-1,1':4',1"-terphenyls and incorporating the alkylcyclobutyl group.The preparations and transition temperatures for these series of compounds are presented and their transition temperatures and mesophase types are discussed.An interesting result from this work was the appearence of an S*C phase for one chiral homologue and of SC phases for the esters incorporating the alkylcyclobutyl group.The SC formation is attributed to the presence of the fluoro-substituent.Keywords: terphenyls, fluoroterphenyls, smectic C phases, cyclobutyl esters.

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