79897-89-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 79897-89-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,8,9 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 79897-89:
(7*7)+(6*9)+(5*8)+(4*9)+(3*7)+(2*8)+(1*9)=225
225 % 10 = 5
So 79897-89-5 is a valid CAS Registry Number.