138480-20-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138480-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,4,8 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 138480-20:
(8*1)+(7*3)+(6*8)+(5*4)+(4*8)+(3*0)+(2*2)+(1*0)=133
133 % 10 = 3
So 138480-20-3 is a valid CAS Registry Number.