1164541-26-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1164541-26-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,6,4,5,4 and 1 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1164541-26:
(9*1)+(8*1)+(7*6)+(6*4)+(5*5)+(4*4)+(3*1)+(2*2)+(1*6)=137
137 % 10 = 7
So 1164541-26-7 is a valid CAS Registry Number.