909398-11-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 909398-11-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,9,3,9 and 8 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 909398-11:
(8*9)+(7*0)+(6*9)+(5*3)+(4*9)+(3*8)+(2*1)+(1*1)=204
204 % 10 = 4
So 909398-11-4 is a valid CAS Registry Number.