13420-61-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13420-61-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,4,2 and 0 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 13420-61:
(7*1)+(6*3)+(5*4)+(4*2)+(3*0)+(2*6)+(1*1)=66
66 % 10 = 6
So 13420-61-6 is a valid CAS Registry Number.