38440-90-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 38440-90-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,8,4,4 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 38440-90:
(7*3)+(6*8)+(5*4)+(4*4)+(3*0)+(2*9)+(1*0)=123
123 % 10 = 3
So 38440-90-3 is a valid CAS Registry Number.