56973-42-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56973-42-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,9,7 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 56973-42:
(7*5)+(6*6)+(5*9)+(4*7)+(3*3)+(2*4)+(1*2)=163
163 % 10 = 3
So 56973-42-3 is a valid CAS Registry Number.