434956-20-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 434956-20-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,4,9,5 and 6 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 434956-20:
(8*4)+(7*3)+(6*4)+(5*9)+(4*5)+(3*6)+(2*2)+(1*0)=164
164 % 10 = 4
So 434956-20-4 is a valid CAS Registry Number.
434956-20-4Relevant academic research and scientific papers
Cyclization of α,δ-dihydroxyepoxide derivatives. Stereochemical studies
Diez,Moro,Lumeras,Rodriguez,Marcos,Basabe,Escarcena,Urones
, p. 175 - 184 (2007/10/03)
The influence of different protecting groups in the cyclization of highly substituted α,δ-dihydroxyepoxides has been studied. It is possible to control the opening or the cyclization of the epoxide depending on the protecting group used.
