7390-40-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7390-40-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,3,9 and 0 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 7390-40:
(6*7)+(5*3)+(4*9)+(3*0)+(2*4)+(1*0)=101
101 % 10 = 1
So 7390-40-1 is a valid CAS Registry Number.