223679-64-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223679-64-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,6,7 and 9 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 223679-64:
(8*2)+(7*2)+(6*3)+(5*6)+(4*7)+(3*9)+(2*6)+(1*4)=149
149 % 10 = 9
So 223679-64-9 is a valid CAS Registry Number.