100401-40-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100401-40-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,4,0 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 100401-40:
(8*1)+(7*0)+(6*0)+(5*4)+(4*0)+(3*1)+(2*4)+(1*0)=39
39 % 10 = 9
So 100401-40-9 is a valid CAS Registry Number.