43217-64-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 43217-64-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,3,2,1 and 7 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 43217-64:
(7*4)+(6*3)+(5*2)+(4*1)+(3*7)+(2*6)+(1*4)=97
97 % 10 = 7
So 43217-64-7 is a valid CAS Registry Number.