303145-98-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 303145-98-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,3,1,4 and 5 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 303145-98:
(8*3)+(7*0)+(6*3)+(5*1)+(4*4)+(3*5)+(2*9)+(1*8)=104
104 % 10 = 4
So 303145-98-4 is a valid CAS Registry Number.