56808-42-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56808-42-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,8,0 and 8 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 56808-42:
(7*5)+(6*6)+(5*8)+(4*0)+(3*8)+(2*4)+(1*2)=145
145 % 10 = 5
So 56808-42-5 is a valid CAS Registry Number.