501433-77-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 501433-77-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,1,4,3 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 501433-77:
(8*5)+(7*0)+(6*1)+(5*4)+(4*3)+(3*3)+(2*7)+(1*7)=108
108 % 10 = 8
So 501433-77-8 is a valid CAS Registry Number.
501433-77-8Relevant articles and documents
Heterocyclization reaction of 2-(2-methylaziridin-1-yl)-3-ureido-pyridines under Appel's conditions
Lim, Ji-Sun,Lee, Kee-Jung
, p. 975 - 980 (2002)
The reaction of 2-(2-methylaziridin-1-yl)-3-ureidopyridines 12 with triphenylphosphine, carbon tetrachloride, and triethylamine (Appel's conditions) led to the corresponding carbodiimides 13, which underwent intramolecular cycloaddition reaction with azir