208998-89-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 208998-89-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,8,9,9 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 208998-89:
(8*2)+(7*0)+(6*8)+(5*9)+(4*9)+(3*8)+(2*8)+(1*9)=194
194 % 10 = 4
So 208998-89-4 is a valid CAS Registry Number.
208998-89-4Relevant academic research and scientific papers
Addition of nitrile oxides to germyl-substituted ethylenes
Lukevics,Arsenyan,Belyakov,Popelis
, p. 155 - 161 (2007/10/03)
The reactions of [2+3] cycloaddition of nitrile oxides to mono- and 1,2-disubstituted germylalkenes proceed regioselectively and resulted 5-Ge-substituted isoxazolines-2 from triethylvinyl- and triethylallylgermane and 4-Ge-isomers from β-triorganylgermyl
