80421-96-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80421-96-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,4,2 and 1 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 80421-96:
(7*8)+(6*0)+(5*4)+(4*2)+(3*1)+(2*9)+(1*6)=111
111 % 10 = 1
So 80421-96-1 is a valid CAS Registry Number.
80421-96-1Relevant articles and documents
UNSYMMETRICAL COUPLING OF 2-ARYLTHIOPHENES BY CATION EXCHANGE RESIN
Sone, Tyo,Kubo, Masaaki,Kanno, Tsutomu
, p. 1195 - 1198 (2007/10/02)
2-Arylthiophenes coupled through the 4,5'-positions of the two thiophene rings by the action of cation exchange resin to afford unsymmetrical 5,5'-diaryl-2,3'-bithienyls as principal products.
