1040079-81-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1040079-81-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,4,0,0,7 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1040079-81:
(9*1)+(8*0)+(7*4)+(6*0)+(5*0)+(4*7)+(3*9)+(2*8)+(1*1)=109
109 % 10 = 9
So 1040079-81-9 is a valid CAS Registry Number.