74857-26-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74857-26-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,8,5 and 7 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 74857-26:
(7*7)+(6*4)+(5*8)+(4*5)+(3*7)+(2*2)+(1*6)=164
164 % 10 = 4
So 74857-26-4 is a valid CAS Registry Number.