1889-40-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1889-40-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,8 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1889-40:
(6*1)+(5*8)+(4*8)+(3*9)+(2*4)+(1*0)=113
113 % 10 = 3
So 1889-40-3 is a valid CAS Registry Number.