13722-87-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13722-87-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,7,2 and 2 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 13722-87:
(7*1)+(6*3)+(5*7)+(4*2)+(3*2)+(2*8)+(1*7)=97
97 % 10 = 7
So 13722-87-7 is a valid CAS Registry Number.