172164-34-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 172164-34-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,1,6 and 4 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 172164-34:
(8*1)+(7*7)+(6*2)+(5*1)+(4*6)+(3*4)+(2*3)+(1*4)=120
120 % 10 = 0
So 172164-34-0 is a valid CAS Registry Number.