109369-51-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109369-51-9 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, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 109369-51:
(8*1)+(7*0)+(6*9)+(5*3)+(4*6)+(3*9)+(2*5)+(1*1)=139
139 % 10 = 9
So 109369-51-9 is a valid CAS Registry Number.