1164488-21-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1164488-21-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,6,4,4,8 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1164488-21:
(9*1)+(8*1)+(7*6)+(6*4)+(5*4)+(4*8)+(3*8)+(2*2)+(1*1)=164
164 % 10 = 4
So 1164488-21-4 is a valid CAS Registry Number.