34154-99-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 34154-99-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,1,5 and 4 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 34154-99:
(7*3)+(6*4)+(5*1)+(4*5)+(3*4)+(2*9)+(1*9)=109
109 % 10 = 9
So 34154-99-9 is a valid CAS Registry Number.