891780-19-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 891780-19-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,9,1,7,8 and 0 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 891780-19:
(8*8)+(7*9)+(6*1)+(5*7)+(4*8)+(3*0)+(2*1)+(1*9)=211
211 % 10 = 1
So 891780-19-1 is a valid CAS Registry Number.