109336-31-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109336-31-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,3,3 and 6 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 109336-31:
(8*1)+(7*0)+(6*9)+(5*3)+(4*3)+(3*6)+(2*3)+(1*1)=114
114 % 10 = 4
So 109336-31-4 is a valid CAS Registry Number.