58721-87-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 58721-87-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,7,2 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 58721-87:
(7*5)+(6*8)+(5*7)+(4*2)+(3*1)+(2*8)+(1*7)=152
152 % 10 = 2
So 58721-87-2 is a valid CAS Registry Number.