100872-23-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100872-23-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,8,7 and 2 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 100872-23:
(8*1)+(7*0)+(6*0)+(5*8)+(4*7)+(3*2)+(2*2)+(1*3)=89
89 % 10 = 9
So 100872-23-9 is a valid CAS Registry Number.