72508-87-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72508-87-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,5,0 and 8 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 72508-87:
(7*7)+(6*2)+(5*5)+(4*0)+(3*8)+(2*8)+(1*7)=133
133 % 10 = 3
So 72508-87-3 is a valid CAS Registry Number.