2040-38-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2040-38-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,4 and 0 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 2040-38:
(6*2)+(5*0)+(4*4)+(3*0)+(2*3)+(1*8)=42
42 % 10 = 2
So 2040-38-2 is a valid CAS Registry Number.