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42457-27-2

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42457-27-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42457-27-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,4,5 and 7 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 42457-27:
(7*4)+(6*2)+(5*4)+(4*5)+(3*7)+(2*2)+(1*7)=112
112 % 10 = 2
So 42457-27-2 is a valid CAS Registry Number.

42457-27-2Relevant articles and documents

TEMPO-catalyzed synthesis of 5-substituted isoxazoles from propargylic ketones and TMSN3

He, Yan,Xie, Yu-Yang,Wang, Ying-Chun,Bin, Xiao-Min,Hu, Da-Chao,Wang, Heng-Shan,Pan, Ying-Ming

, p. 58988 - 58993 (2016/07/06)

A novel and efficient TEMPO-catalyzed synthesis of 5-substituted isoxazoles from propargylic ketones and TMSN3via a radical mechanism process is described. This methodology provides an easy access to a variety of useful 5-substituted isoxazoles

A general method for the synthesis of tetramic acid derivatives

DeShong,Cipollina,Lowmaster

, p. 1356 - 1364,1356-1364 (2007/10/02)

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