23604-05-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23604-05-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,6,0 and 4 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 23604-05:
(7*2)+(6*3)+(5*6)+(4*0)+(3*4)+(2*0)+(1*5)=79
79 % 10 = 9
So 23604-05-9 is a valid CAS Registry Number.