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40805-86-5

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40805-86-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40805-86-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,8,0 and 5 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 40805-86:
(7*4)+(6*0)+(5*8)+(4*0)+(3*5)+(2*8)+(1*6)=105
105 % 10 = 5
So 40805-86-5 is a valid CAS Registry Number.

40805-86-5Downstream Products

40805-86-5Relevant articles and documents

Amine Activation: Synthesis of N-(Hetero)arylamides from Isothioureas and Carboxylic Acids

Zhu, Yan-Ping,Sergeyev, Sergey,Franck, Philippe,Orru, Romano V. A.,Maes, Bert U. W.

, p. 4602 - 4605 (2016)

A novel method for N-(hetero)arylamide synthesis based on rarely explored amine activation, rather than classical acid activation, is reported. The activated amines are easily prepared using a three-component reaction with commercial reagents. The new method shows a broad scope including challenging amides not (efficiently) accessible via classical protocols.

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