42215-22-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42215-22-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,2,1 and 5 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 42215-22:
(7*4)+(6*2)+(5*2)+(4*1)+(3*5)+(2*2)+(1*2)=75
75 % 10 = 5
So 42215-22-5 is a valid CAS Registry Number.