303053-11-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 303053-11-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,3,0,5 and 3 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 303053-11:
(8*3)+(7*0)+(6*3)+(5*0)+(4*5)+(3*3)+(2*1)+(1*1)=74
74 % 10 = 4
So 303053-11-4 is a valid CAS Registry Number.