23288-87-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23288-87-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,2,8 and 8 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 23288-87:
(7*2)+(6*3)+(5*2)+(4*8)+(3*8)+(2*8)+(1*7)=121
121 % 10 = 1
So 23288-87-1 is a valid CAS Registry Number.