51172-61-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51172-61-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,1,7 and 2 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 51172-61:
(7*5)+(6*1)+(5*1)+(4*7)+(3*2)+(2*6)+(1*1)=93
93 % 10 = 3
So 51172-61-3 is a valid CAS Registry Number.