42451-59-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42451-59-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,4,5 and 1 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 42451-59:
(7*4)+(6*2)+(5*4)+(4*5)+(3*1)+(2*5)+(1*9)=102
102 % 10 = 2
So 42451-59-2 is a valid CAS Registry Number.