109042-65-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109042-65-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,0,4 and 2 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 109042-65:
(8*1)+(7*0)+(6*9)+(5*0)+(4*4)+(3*2)+(2*6)+(1*5)=101
101 % 10 = 1
So 109042-65-1 is a valid CAS Registry Number.