644968-23-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 644968-23-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,4,9,6 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 644968-23:
(8*6)+(7*4)+(6*4)+(5*9)+(4*6)+(3*8)+(2*2)+(1*3)=200
200 % 10 = 0
So 644968-23-0 is a valid CAS Registry Number.