74045-42-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74045-42-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,0,4 and 5 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 74045-42:
(7*7)+(6*4)+(5*0)+(4*4)+(3*5)+(2*4)+(1*2)=114
114 % 10 = 4
So 74045-42-4 is a valid CAS Registry Number.