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1,2,4,5-Tetrakis-<2-nitro-phenoxymethyl>-benzol is a complex organic compound with the molecular formula C28H20N4O8. It is a derivative of benzene, featuring four nitrophenoxymethyl groups attached to the benzene ring at positions 1, 2, 4, and 5. The compound is characterized by its nitro groups (-NO2) attached to the phenoxymethyl groups, which contribute to its chemical reactivity and properties. This molecule is of interest in the field of organic chemistry, potentially for its use in the synthesis of other compounds or as a research tool to study the effects of nitro groups on aromatic systems. Due to its complex structure and potential reactivity, it is important to handle 1,2,4,5-Tetrakis-<2-nitro-phenoxymethyl>-benzol with care, following appropriate safety protocols.

992-63-2

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992-63-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 992-63-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,9 and 2 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 992-63:
(5*9)+(4*9)+(3*2)+(2*6)+(1*3)=102
102 % 10 = 2
So 992-63-2 is a valid CAS Registry Number.

992-63-2Downstream Products

992-63-2Relevant academic research and scientific papers

Fluorescent but ‘choked’ multipodands: Ag(I) complexation and NMR studies

Singh, Prabhpreet

, p. 67 - 76 (2021)

Abstract: A series of fluorescent and non-fluorescent multipodands, substituted with donor S, N, and O heteroatoms, bridged to mesitylene and benzene core at 1, 3-, 1, 3, 5-, and 1, 2, 4, 5-positions have been synthesized and characterized. The liquid–liquid extraction experiment showed that non-fluorescent podands such as mono-, di-, tri-, and tetrapod exhibited excellent complexation abilities towards Ag+ ions. The tetrapodand (O, N) shows highest extraction of Ag+ (73%) and tetrapodand (S, N) shows the highest Ag+/Pb2+ selectivity (135). However, for fluorescent dipodands very weak complexation ability towards metal ions were observed likely due to steric crowding. Significantly, these fluorescent dipodands undergoes protonation at very low pH (ca. 1.0), reminiscent of acid stability—a structural feature of blue copper proteins. The NMR analysis of fluorescent podands showed that amine-appended anthracene moiety(ies) almost fills the podand cavity as lid, shifting most of the protons upfield (~ 0.5?ppm), thus causing acid stability. Graphic abstract: [Figure not available: see fulltext.].

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