56420-30-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56420-30-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,4,2 and 0 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 56420-30:
(7*5)+(6*6)+(5*4)+(4*2)+(3*0)+(2*3)+(1*0)=105
105 % 10 = 5
So 56420-30-5 is a valid CAS Registry Number.