1040-68-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1040-68-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,0,4 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1040-68:
(6*1)+(5*0)+(4*4)+(3*0)+(2*6)+(1*8)=42
42 % 10 = 2
So 1040-68-2 is a valid CAS Registry Number.