80042-35-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80042-35-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,0,4 and 2 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 80042-35:
(7*8)+(6*0)+(5*0)+(4*4)+(3*2)+(2*3)+(1*5)=89
89 % 10 = 9
So 80042-35-9 is a valid CAS Registry Number.