74287-05-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74287-05-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,2,8 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 74287-05:
(7*7)+(6*4)+(5*2)+(4*8)+(3*7)+(2*0)+(1*5)=141
141 % 10 = 1
So 74287-05-1 is a valid CAS Registry Number.