56813-77-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56813-77-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,8,1 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 56813-77:
(7*5)+(6*6)+(5*8)+(4*1)+(3*3)+(2*7)+(1*7)=145
145 % 10 = 5
So 56813-77-5 is a valid CAS Registry Number.