34209-93-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 34209-93-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,2,0 and 9 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 34209-93:
(7*3)+(6*4)+(5*2)+(4*0)+(3*9)+(2*9)+(1*3)=103
103 % 10 = 3
So 34209-93-3 is a valid CAS Registry Number.