51217-97-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51217-97-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,2,1 and 7 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 51217-97:
(7*5)+(6*1)+(5*2)+(4*1)+(3*7)+(2*9)+(1*7)=101
101 % 10 = 1
So 51217-97-1 is a valid CAS Registry Number.