83779-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83779-89-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,7,7 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 83779-89:
(7*8)+(6*3)+(5*7)+(4*7)+(3*9)+(2*8)+(1*9)=189
189 % 10 = 9
So 83779-89-9 is a valid CAS Registry Number.