904016-43-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 904016-43-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,4,0,1 and 6 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 904016-43:
(8*9)+(7*0)+(6*4)+(5*0)+(4*1)+(3*6)+(2*4)+(1*3)=129
129 % 10 = 9
So 904016-43-9 is a valid CAS Registry Number.