1334420-90-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1334420-90-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,4,4,2 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1334420-90:
(9*1)+(8*3)+(7*3)+(6*4)+(5*4)+(4*2)+(3*0)+(2*9)+(1*0)=124
124 % 10 = 4
So 1334420-90-4 is a valid CAS Registry Number.
1334420-90-4Relevant articles and documents
Synthesis of tetra-ortho-substituted biaryls using aryltriolborates
Li, Gao-Qiang,Yamamoto, Yasunori,Miyaura, Norio
, p. 1769 - 1773 (2011)
Tetra-ortho-substituted biaryls were synthesized by cross-coupling between 2,6-disubstituted bromoarenes and aryltriolborates possessing substituents at ortho carbon. The use of a copper(I) halide such as CuCl (20 mol%) with a palladium catalyst was found