164257-41-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 164257-41-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,4,2,5 and 7 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 164257-41:
(8*1)+(7*6)+(6*4)+(5*2)+(4*5)+(3*7)+(2*4)+(1*1)=134
134 % 10 = 4
So 164257-41-4 is a valid CAS Registry Number.
164257-41-4Relevant articles and documents
Introduction of methyl groups on vinylene segments of phenylene vinylene systems: Synthesis and properties
Chan, Khai Leok,Sellinger, Alan
, p. 3976 - 3981 (2009)
A facile synthetic route towards phenylene vinylene systems with methyl substituents at the vinyl linkages is demonstrated through palladium catalyzed Heck coupling of 1,4-diisopropenylbenzene with aryl bromides. The coupling leads to a series of model co
