8039-38-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 8039-38-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 8,0,3 and 9 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 8039-38:
(6*8)+(5*0)+(4*3)+(3*9)+(2*3)+(1*8)=101
101 % 10 = 1
So 8039-38-1 is a valid CAS Registry Number.