66567-93-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66567-93-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,5,6 and 7 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 66567-93:
(7*6)+(6*6)+(5*5)+(4*6)+(3*7)+(2*9)+(1*3)=169
169 % 10 = 9
So 66567-93-9 is a valid CAS Registry Number.