42202-42-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42202-42-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,2,0 and 2 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 42202-42:
(7*4)+(6*2)+(5*2)+(4*0)+(3*2)+(2*4)+(1*2)=66
66 % 10 = 6
So 42202-42-6 is a valid CAS Registry Number.