180904-95-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 180904-95-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,0,9,0 and 4 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 180904-95:
(8*1)+(7*8)+(6*0)+(5*9)+(4*0)+(3*4)+(2*9)+(1*5)=144
144 % 10 = 4
So 180904-95-4 is a valid CAS Registry Number.