742104-52-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 742104-52-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,2,1,0 and 4 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 742104-52:
(8*7)+(7*4)+(6*2)+(5*1)+(4*0)+(3*4)+(2*5)+(1*2)=125
125 % 10 = 5
So 742104-52-5 is a valid CAS Registry Number.