217447-19-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 217447-19-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,4,4 and 7 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 217447-19:
(8*2)+(7*1)+(6*7)+(5*4)+(4*4)+(3*7)+(2*1)+(1*9)=133
133 % 10 = 3
So 217447-19-3 is a valid CAS Registry Number.