109369-18-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109369-18-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,3,6 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 109369-18:
(8*1)+(7*0)+(6*9)+(5*3)+(4*6)+(3*9)+(2*1)+(1*8)=138
138 % 10 = 8
So 109369-18-8 is a valid CAS Registry Number.