164019-26-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 164019-26-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,4,0,1 and 9 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 164019-26:
(8*1)+(7*6)+(6*4)+(5*0)+(4*1)+(3*9)+(2*2)+(1*6)=115
115 % 10 = 5
So 164019-26-5 is a valid CAS Registry Number.