205444-26-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 205444-26-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,5,4,4 and 4 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 205444-26:
(8*2)+(7*0)+(6*5)+(5*4)+(4*4)+(3*4)+(2*2)+(1*6)=104
104 % 10 = 4
So 205444-26-4 is a valid CAS Registry Number.