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β-m-Nitrophenyl-m-nitro-hydrozimtsaeure, also known as β-m-Nitrophenyl-m-nitrobenzoate, is a chemical compound that belongs to the class of hydroxamic acids. It is formed by the reaction of m-nitrophenol with m-nitrobenzoyl chloride, resulting in an ester linkage between the two aromatic rings. β-m-Nitrophenyl-m-nitro-hydrozimtsaeure is characterized by its yellow crystalline appearance and is soluble in organic solvents such as ethanol and acetone. It is often used as a substrate in enzymatic assays, particularly for the detection of carboxylesterase activity, due to its ability to undergo hydrolysis under the influence of these enzymes. The hydrolysis reaction results in the release of m-nitrophenol, which can be easily quantified colorimetrically, making it a valuable tool in biochemical research and diagnostics.

20839-52-5

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20839-52-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20839-52-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,3 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 20839-52:
(7*2)+(6*0)+(5*8)+(4*3)+(3*9)+(2*5)+(1*2)=105
105 % 10 = 5
So 20839-52-5 is a valid CAS Registry Number.

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