79663-90-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 79663-90-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,6,6 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 79663-90:
(7*7)+(6*9)+(5*6)+(4*6)+(3*3)+(2*9)+(1*0)=184
184 % 10 = 4
So 79663-90-4 is a valid CAS Registry Number.