109287-53-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109287-53-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,2,8 and 7 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 109287-53:
(8*1)+(7*0)+(6*9)+(5*2)+(4*8)+(3*7)+(2*5)+(1*3)=138
138 % 10 = 8
So 109287-53-8 is a valid CAS Registry Number.