744202-05-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 744202-05-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,4,2,0 and 2 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 744202-05:
(8*7)+(7*4)+(6*4)+(5*2)+(4*0)+(3*2)+(2*0)+(1*5)=129
129 % 10 = 9
So 744202-05-9 is a valid CAS Registry Number.