1164520-93-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1164520-93-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,6,4,5,2 and 0 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1164520-93:
(9*1)+(8*1)+(7*6)+(6*4)+(5*5)+(4*2)+(3*0)+(2*9)+(1*3)=137
137 % 10 = 7
So 1164520-93-7 is a valid CAS Registry Number.