100200-23-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100200-23-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,2,0 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 100200-23:
(8*1)+(7*0)+(6*0)+(5*2)+(4*0)+(3*0)+(2*2)+(1*3)=25
25 % 10 = 5
So 100200-23-5 is a valid CAS Registry Number.