1420845-89-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1420845-89-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,0,8,4 and 5 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1420845-89:
(9*1)+(8*4)+(7*2)+(6*0)+(5*8)+(4*4)+(3*5)+(2*8)+(1*9)=151
151 % 10 = 1
So 1420845-89-1 is a valid CAS Registry Number.