903090-09-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 903090-09-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,3,0,9 and 0 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 903090-09:
(8*9)+(7*0)+(6*3)+(5*0)+(4*9)+(3*0)+(2*0)+(1*9)=135
135 % 10 = 5
So 903090-09-5 is a valid CAS Registry Number.