303994-44-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 303994-44-7 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, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 303994-44:
(8*3)+(7*0)+(6*3)+(5*9)+(4*9)+(3*4)+(2*4)+(1*4)=147
147 % 10 = 7
So 303994-44-7 is a valid CAS Registry Number.