47239-20-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 47239-20-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,7,2,3 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 47239-20:
(7*4)+(6*7)+(5*2)+(4*3)+(3*9)+(2*2)+(1*0)=123
123 % 10 = 3
So 47239-20-3 is a valid CAS Registry Number.