240805-42-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 240805-42-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,0,8,0 and 5 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 240805-42:
(8*2)+(7*4)+(6*0)+(5*8)+(4*0)+(3*5)+(2*4)+(1*2)=109
109 % 10 = 9
So 240805-42-9 is a valid CAS Registry Number.