13420-70-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13420-70-7 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, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 13420-70:
(7*1)+(6*3)+(5*4)+(4*2)+(3*0)+(2*7)+(1*0)=67
67 % 10 = 7
So 13420-70-7 is a valid CAS Registry Number.