303097-16-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 303097-16-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,3,0,9 and 7 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 303097-16:
(8*3)+(7*0)+(6*3)+(5*0)+(4*9)+(3*7)+(2*1)+(1*6)=107
107 % 10 = 7
So 303097-16-7 is a valid CAS Registry Number.