303994-57-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 303994-57-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,3,9,9 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 303994-57:
(8*3)+(7*0)+(6*3)+(5*9)+(4*9)+(3*4)+(2*5)+(1*7)=152
152 % 10 = 2
So 303994-57-2 is a valid CAS Registry Number.