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1417421-67-0

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1417421-67-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1417421-67-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,1,7,4,2 and 1 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1417421-67:
(9*1)+(8*4)+(7*1)+(6*7)+(5*4)+(4*2)+(3*1)+(2*6)+(1*7)=140
140 % 10 = 0
So 1417421-67-0 is a valid CAS Registry Number.

1417421-67-0Downstream Products

1417421-67-0Relevant articles and documents

Synthesis of 5-arylamino-1-arylpyrazoles from 5-aminopyrazoles with arylhalides via CuI catalyzed Ullman coupling reaction

Chang, En-Chiuan,Chen, Chun-Yen,Wang, Li-Ya,Huang, Yu-Ying,Yeh, Mou-Yung,Wong, Fung Fuh

supporting information, p. 570 - 576 (2013/07/25)

An efficient method for synthesis of 5-arylamino-1-arylpyrazoles was developed by Ullman coupling reaction of 5-aminopyrazoles and arylhalides in the presence of cuprous iodide (CuI) as the catalyst. The corresponding 5-N-arylaminopyrazole products were o

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