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The chemical compound "C28H22N2O4" is an organic molecule composed of 28 carbon atoms, 22 hydrogen atoms, 2 nitrogen atoms, and 4 oxygen atoms. C28H22N2O4 has a molecular formula that indicates it is likely a complex organic molecule, possibly a derivative of a larger aromatic system given the high number of carbon atoms. The presence of nitrogen atoms suggests it may have functional groups such as amines or amides, which could contribute to its reactivity or biological activity. The four oxygen atoms could be part of ester, ether, or carbonyl groups, which are common in many organic compounds. The specific structure and properties of C28H22N2O4 would depend on the arrangement of these atoms and the types of bonds they form with each other.

1533-44-4

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1533-44-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1533-44-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,5,3 and 3 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1533-44:
(6*1)+(5*5)+(4*3)+(3*3)+(2*4)+(1*4)=64
64 % 10 = 4
So 1533-44-4 is a valid CAS Registry Number.

1533-44-4Relevant academic research and scientific papers

Eine einfache Methode zur Herstellung von Benzoxazolen

Seha, Zdenek,Weis, Claus D

, p. 413 - 419 (2007/10/02)

The preparation of benzoxazoles by a facile one-pot reaction is reported.The reaction of carboxylic acids with 2-chloro-N-methyl-Δ1-pyrrolinium chloride in an excess of N-methyl-2-pyrrolidone afforded carboxylic acid chlorides which were converted subsequently to their 2-hydroxyanilides by addition of 2-aminophenols.Cyclization of the 2-hydroxy-anilides at elevated temperatures furnished the benzoxazoles in high yield and purity.

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