620161-26-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 620161-26-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,2,0,1,6 and 1 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 620161-26:
(8*6)+(7*2)+(6*0)+(5*1)+(4*6)+(3*1)+(2*2)+(1*6)=104
104 % 10 = 4
So 620161-26-4 is a valid CAS Registry Number.