42185-49-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42185-49-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,1,8 and 5 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 42185-49:
(7*4)+(6*2)+(5*1)+(4*8)+(3*5)+(2*4)+(1*9)=109
109 % 10 = 9
So 42185-49-9 is a valid CAS Registry Number.