52421-87-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 52421-87-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,4,2 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 52421-87:
(7*5)+(6*2)+(5*4)+(4*2)+(3*1)+(2*8)+(1*7)=101
101 % 10 = 1
So 52421-87-1 is a valid CAS Registry Number.