209616-51-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 209616-51-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,6,1 and 6 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 209616-51:
(8*2)+(7*0)+(6*9)+(5*6)+(4*1)+(3*6)+(2*5)+(1*1)=133
133 % 10 = 3
So 209616-51-3 is a valid CAS Registry Number.