83280-99-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83280-99-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,2,8 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 83280-99:
(7*8)+(6*3)+(5*2)+(4*8)+(3*0)+(2*9)+(1*9)=143
143 % 10 = 3
So 83280-99-3 is a valid CAS Registry Number.