904917-23-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 904917-23-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,4,9,1 and 7 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 904917-23:
(8*9)+(7*0)+(6*4)+(5*9)+(4*1)+(3*7)+(2*2)+(1*3)=173
173 % 10 = 3
So 904917-23-3 is a valid CAS Registry Number.