42438-70-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42438-70-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,4,3 and 8 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 42438-70:
(7*4)+(6*2)+(5*4)+(4*3)+(3*8)+(2*7)+(1*0)=110
110 % 10 = 0
So 42438-70-0 is a valid CAS Registry Number.