13351-40-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13351-40-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,3,5 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 13351-40:
(7*1)+(6*3)+(5*3)+(4*5)+(3*1)+(2*4)+(1*0)=71
71 % 10 = 1
So 13351-40-1 is a valid CAS Registry Number.