137669-27-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137669-27-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,6,6 and 9 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 137669-27:
(8*1)+(7*3)+(6*7)+(5*6)+(4*6)+(3*9)+(2*2)+(1*7)=163
163 % 10 = 3
So 137669-27-3 is a valid CAS Registry Number.
137669-27-3Relevant academic research and scientific papers
The Reaction of Benzoyl-Substituted Heterocyclic Ketene Aminals with Aryl Azides
Huang, Zhi-Tang,Wang, Mei-Xiang
, p. 184 - 190 (2007/10/02)
The reaction between heterocyclic ketene aminals, 2-(benzoylmethylene)imidazolidines 3, -hexahydropyrimidines 4, and phenyl azides 5 was investigated.Both the reaction rate and products were strongly dependent on the substituents on 3 or 4 and 5.The react
