26899-28-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 26899-28-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,8,9 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 26899-28:
(7*2)+(6*6)+(5*8)+(4*9)+(3*9)+(2*2)+(1*8)=165
165 % 10 = 5
So 26899-28-5 is a valid CAS Registry Number.