18305-62-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18305-62-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,3,0 and 5 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 18305-62:
(7*1)+(6*8)+(5*3)+(4*0)+(3*5)+(2*6)+(1*2)=99
99 % 10 = 9
So 18305-62-9 is a valid CAS Registry Number.