73172-47-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73172-47-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,1,7 and 2 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 73172-47:
(7*7)+(6*3)+(5*1)+(4*7)+(3*2)+(2*4)+(1*7)=121
121 % 10 = 1
So 73172-47-1 is a valid CAS Registry Number.