64403-38-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64403-38-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,4,0 and 3 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 64403-38:
(7*6)+(6*4)+(5*4)+(4*0)+(3*3)+(2*3)+(1*8)=109
109 % 10 = 9
So 64403-38-9 is a valid CAS Registry Number.