4390-75-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4390-75-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,3,9 and 0 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4390-75:
(6*4)+(5*3)+(4*9)+(3*0)+(2*7)+(1*5)=94
94 % 10 = 4
So 4390-75-4 is a valid CAS Registry Number.