34329-20-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 34329-20-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,3,2 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 34329-20:
(7*3)+(6*4)+(5*3)+(4*2)+(3*9)+(2*2)+(1*0)=99
99 % 10 = 9
So 34329-20-9 is a valid CAS Registry Number.