23090-99-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23090-99-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,0,9 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 23090-99:
(7*2)+(6*3)+(5*0)+(4*9)+(3*0)+(2*9)+(1*9)=95
95 % 10 = 5
So 23090-99-5 is a valid CAS Registry Number.