424807-26-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 424807-26-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,4,8,0 and 7 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 424807-26:
(8*4)+(7*2)+(6*4)+(5*8)+(4*0)+(3*7)+(2*2)+(1*6)=141
141 % 10 = 1
So 424807-26-1 is a valid CAS Registry Number.