42909-06-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42909-06-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,9,0 and 9 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 42909-06:
(7*4)+(6*2)+(5*9)+(4*0)+(3*9)+(2*0)+(1*6)=118
118 % 10 = 8
So 42909-06-8 is a valid CAS Registry Number.