1439552-20-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1439552-20-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,9,5,5 and 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1439552-20:
(9*1)+(8*4)+(7*3)+(6*9)+(5*5)+(4*5)+(3*2)+(2*2)+(1*0)=171
171 % 10 = 1
So 1439552-20-1 is a valid CAS Registry Number.
1439552-20-1Relevant academic research and scientific papers
Direct synthesis of pyrroles via 1,3-dipolar cycloaddition of azomethine ylides with ynones
Wang, Zheng,Shi, Ying,Luo, Xiaoyan,Han, De-Man,Deng, Wei-Ping
, p. 1742 - 1745 (2013/06/27)
A direct and facile synthesis of multi-substituted pyrroles via AgOAc-catalyzed 1,3-dipolar cycloaddition of azomethine ylides with ynones is developed, providing the corresponding adducts in moderate to high yields (up to 89%).
