27889-40-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 27889-40-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,8,8 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 27889-40:
(7*2)+(6*7)+(5*8)+(4*8)+(3*9)+(2*4)+(1*0)=163
163 % 10 = 3
So 27889-40-3 is a valid CAS Registry Number.