164472-81-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 164472-81-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,4,4,7 and 2 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 164472-81:
(8*1)+(7*6)+(6*4)+(5*4)+(4*7)+(3*2)+(2*8)+(1*1)=145
145 % 10 = 5
So 164472-81-5 is a valid CAS Registry Number.