109425-98-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109425-98-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,4,2 and 5 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 109425-98:
(8*1)+(7*0)+(6*9)+(5*4)+(4*2)+(3*5)+(2*9)+(1*8)=131
131 % 10 = 1
So 109425-98-1 is a valid CAS Registry Number.