349403-80-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 349403-80-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,9,4,0 and 3 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 349403-80:
(8*3)+(7*4)+(6*9)+(5*4)+(4*0)+(3*3)+(2*8)+(1*0)=151
151 % 10 = 1
So 349403-80-1 is a valid CAS Registry Number.