1164503-54-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1164503-54-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,6,4,5,0 and 3 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1164503-54:
(9*1)+(8*1)+(7*6)+(6*4)+(5*5)+(4*0)+(3*3)+(2*5)+(1*4)=131
131 % 10 = 1
So 1164503-54-1 is a valid CAS Registry Number.