303982-80-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 303982-80-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,3,9,8 and 2 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 303982-80:
(8*3)+(7*0)+(6*3)+(5*9)+(4*8)+(3*2)+(2*8)+(1*0)=141
141 % 10 = 1
So 303982-80-1 is a valid CAS Registry Number.