26889-18-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 26889-18-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,8,8 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 26889-18:
(7*2)+(6*6)+(5*8)+(4*8)+(3*9)+(2*1)+(1*8)=159
159 % 10 = 9
So 26889-18-9 is a valid CAS Registry Number.