21960-87-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21960-87-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,9,6 and 0 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 21960-87:
(7*2)+(6*1)+(5*9)+(4*6)+(3*0)+(2*8)+(1*7)=112
112 % 10 = 2
So 21960-87-2 is a valid CAS Registry Number.