90308-53-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90308-53-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,3,0 and 8 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90308-53:
(7*9)+(6*0)+(5*3)+(4*0)+(3*8)+(2*5)+(1*3)=115
115 % 10 = 5
So 90308-53-5 is a valid CAS Registry Number.