80934-81-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80934-81-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,9,3 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 80934-81:
(7*8)+(6*0)+(5*9)+(4*3)+(3*4)+(2*8)+(1*1)=142
142 % 10 = 2
So 80934-81-2 is a valid CAS Registry Number.