13711-15-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13711-15-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,7,1 and 1 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 13711-15:
(7*1)+(6*3)+(5*7)+(4*1)+(3*1)+(2*1)+(1*5)=74
74 % 10 = 4
So 13711-15-4 is a valid CAS Registry Number.