904692-20-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 904692-20-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,4,6,9 and 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 904692-20:
(8*9)+(7*0)+(6*4)+(5*6)+(4*9)+(3*2)+(2*2)+(1*0)=172
172 % 10 = 2
So 904692-20-2 is a valid CAS Registry Number.