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1-(4-Ethoxy-2,3,5,6-tetrafluoro-phenyl)-ethanone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

28293-52-9

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28293-52-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28293-52-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,2,9 and 3 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 28293-52:
(7*2)+(6*8)+(5*2)+(4*9)+(3*3)+(2*5)+(1*2)=129
129 % 10 = 9
So 28293-52-9 is a valid CAS Registry Number.
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