217467-70-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 217467-70-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,4,6 and 7 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 217467-70:
(8*2)+(7*1)+(6*7)+(5*4)+(4*6)+(3*7)+(2*7)+(1*0)=144
144 % 10 = 4
So 217467-70-4 is a valid CAS Registry Number.