26990-24-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 26990-24-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,9,9 and 0 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 26990-24:
(7*2)+(6*6)+(5*9)+(4*9)+(3*0)+(2*2)+(1*4)=139
139 % 10 = 9
So 26990-24-9 is a valid CAS Registry Number.