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1438900-70-9

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1438900-70-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1438900-70-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,8,9,0 and 0 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1438900-70:
(9*1)+(8*4)+(7*3)+(6*8)+(5*9)+(4*0)+(3*0)+(2*7)+(1*0)=169
169 % 10 = 9
So 1438900-70-9 is a valid CAS Registry Number.

1438900-70-9Downstream Products

1438900-70-9Relevant articles and documents

Synthesis of benzidine derivatives via FeCl3·6H 2O-promoted oxidative coupling of anilines

Ling, Xuege,Xiong, Yan,Huang, Ruofeng,Zhang, Xiaohui,Zhang, Shuting,Chen, Changguo

, p. 5218 - 5226 (2013/07/25)

Under open-flask conditions in the presence of commercially available FeCl3·6H2O, N,N-disubstituted anilines can be converted into diversely functionalized benzidines with yields of up to 99%. Oxidative coupling was extended to N-monosubstituted anilines, and the method was applied to the efficient preparation of 6,6′-biquinoline. Mechanistic investigations have also been performed to explain the observed reactivities.

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