67653-89-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67653-89-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,6,5 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 67653-89:
(7*6)+(6*7)+(5*6)+(4*5)+(3*3)+(2*8)+(1*9)=168
168 % 10 = 8
So 67653-89-8 is a valid CAS Registry Number.