208333-71-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 208333-71-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,8,3,3 and 3 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 208333-71:
(8*2)+(7*0)+(6*8)+(5*3)+(4*3)+(3*3)+(2*7)+(1*1)=115
115 % 10 = 5
So 208333-71-5 is a valid CAS Registry Number.