18804-30-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18804-30-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,8,0 and 4 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 18804-30:
(7*1)+(6*8)+(5*8)+(4*0)+(3*4)+(2*3)+(1*0)=113
113 % 10 = 3
So 18804-30-3 is a valid CAS Registry Number.