97666-64-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97666-64-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,6,6 and 6 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 97666-64:
(7*9)+(6*7)+(5*6)+(4*6)+(3*6)+(2*6)+(1*4)=193
193 % 10 = 3
So 97666-64-3 is a valid CAS Registry Number.