744217-69-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 744217-69-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,4,2,1 and 7 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 744217-69:
(8*7)+(7*4)+(6*4)+(5*2)+(4*1)+(3*7)+(2*6)+(1*9)=164
164 % 10 = 4
So 744217-69-4 is a valid CAS Registry Number.