42085-86-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42085-86-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,0,8 and 5 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 42085-86:
(7*4)+(6*2)+(5*0)+(4*8)+(3*5)+(2*8)+(1*6)=109
109 % 10 = 9
So 42085-86-9 is a valid CAS Registry Number.