56645-87-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56645-87-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,6,4 and 5 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 56645-87:
(7*5)+(6*6)+(5*6)+(4*4)+(3*5)+(2*8)+(1*7)=155
155 % 10 = 5
So 56645-87-5 is a valid CAS Registry Number.