303149-69-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 303149-69-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,3,1,4 and 9 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 303149-69:
(8*3)+(7*0)+(6*3)+(5*1)+(4*4)+(3*9)+(2*6)+(1*9)=111
111 % 10 = 1
So 303149-69-1 is a valid CAS Registry Number.