56523-31-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56523-31-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,5,2 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 56523-31:
(7*5)+(6*6)+(5*5)+(4*2)+(3*3)+(2*3)+(1*1)=120
120 % 10 = 0
So 56523-31-0 is a valid CAS Registry Number.