503443-91-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 503443-91-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,3,4,4 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 503443-91:
(8*5)+(7*0)+(6*3)+(5*4)+(4*4)+(3*3)+(2*9)+(1*1)=122
122 % 10 = 2
So 503443-91-2 is a valid CAS Registry Number.
503443-91-2Relevant academic research and scientific papers
Synthetic studies on the dienophile unit of methyl isosartortuoate. Part 1: Assembly of the acyclic precursor
Hong, Zhangyong,Chen, Xinchao,Xu, Xingxiang
, p. 485 - 488 (2007/10/03)
A strategically functionalized compound, as the acyclic precursor of the dienophile unit of methyl isosartortuoate has been synthesized, and its stereochemistry was also assigned.
