220439-11-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220439-11-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,4,3 and 9 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 220439-11:
(8*2)+(7*2)+(6*0)+(5*4)+(4*3)+(3*9)+(2*1)+(1*1)=92
92 % 10 = 2
So 220439-11-2 is a valid CAS Registry Number.
220439-11-2Relevant academic research and scientific papers
Reductive intramolecular cyclization of α-bromo silyl ethers mediated by samarium diiodide
Park,Lee,Kwon,Kim
, p. 2745 - 2746 (2007/10/03)
A new SmI2-promoted intramolecular reductive cyclization of β-(α-bromo siloxy) carbonyl compounds is reported.
