804561-19-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 804561-19-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,0,4,5,6 and 1 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 804561-19:
(8*8)+(7*0)+(6*4)+(5*5)+(4*6)+(3*1)+(2*1)+(1*9)=151
151 % 10 = 1
So 804561-19-1 is a valid CAS Registry Number.