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1227689-63-5

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1227689-63-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1227689-63-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,7,6,8 and 9 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1227689-63:
(9*1)+(8*2)+(7*2)+(6*7)+(5*6)+(4*8)+(3*9)+(2*6)+(1*3)=185
185 % 10 = 5
So 1227689-63-5 is a valid CAS Registry Number.

1227689-63-5Relevant articles and documents

Zn(OTf)2-catalyzed addition of amines to carbodiimides: Efficient synthesis of guanidines and unpredicted formation of Zn-N amido species

Li, Dongzhen,Guang, Jie,Zhang, Wen-Xiong,Wang, Yang,Xi, Zhenfeng

, p. 1816 - 1820 (2010)

Zn(OTf)2 acts as an excellent catalyst precursor for addition of various amine N-H bonds to carbodiimides under an atmosphere of air, offering a convenient synthesis of substituted guanidines with high functional-group tolerance. A Zn-N amido species is shown to act as the active species.

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