904731-84-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 904731-84-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,4,7,3 and 1 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 904731-84:
(8*9)+(7*0)+(6*4)+(5*7)+(4*3)+(3*1)+(2*8)+(1*4)=166
166 % 10 = 6
So 904731-84-6 is a valid CAS Registry Number.