133809-83-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133809-83-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,8,0 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 133809-83:
(8*1)+(7*3)+(6*3)+(5*8)+(4*0)+(3*9)+(2*8)+(1*3)=133
133 % 10 = 3
So 133809-83-3 is a valid CAS Registry Number.