978-66-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 978-66-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,7 and 8 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 978-66:
(5*9)+(4*7)+(3*8)+(2*6)+(1*6)=115
115 % 10 = 5
So 978-66-5 is a valid CAS Registry Number.