42392-30-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42392-30-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,3,9 and 2 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 42392-30:
(7*4)+(6*2)+(5*3)+(4*9)+(3*2)+(2*3)+(1*0)=103
103 % 10 = 3
So 42392-30-3 is a valid CAS Registry Number.