1289584-84-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1289584-84-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,9,5,8 and 4 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1289584-84:
(9*1)+(8*2)+(7*8)+(6*9)+(5*5)+(4*8)+(3*4)+(2*8)+(1*4)=224
224 % 10 = 4
So 1289584-84-4 is a valid CAS Registry Number.