186204-78-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 186204-78-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,2,0 and 4 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 186204-78:
(8*1)+(7*8)+(6*6)+(5*2)+(4*0)+(3*4)+(2*7)+(1*8)=144
144 % 10 = 4
So 186204-78-4 is a valid CAS Registry Number.