42239-19-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42239-19-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,2,3 and 9 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 42239-19:
(7*4)+(6*2)+(5*2)+(4*3)+(3*9)+(2*1)+(1*9)=100
100 % 10 = 0
So 42239-19-0 is a valid CAS Registry Number.