92507-97-6 Purity
≥98%
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Wei, Li, et al. Polymer Engineering & Science 54.2 (2014): 336-344.
4-(9-Anthroyloxy)phenacyl bromide (PB) serves as a sensitive fluorescent probe for accurate quantification of carboxylic group density on multi-walled carbon nanotubes (MWCNTs), providing critical data for optimizing alkyl grafting and mechanical reinforcement of polyethylene (PE) composites.
Assay Protocol: Purified MWCNTs were oxidized with HNO3 to generate carboxyl groups. PB was reacted with carboxyl-functionalized MWCNTs, and carboxylic group density was calculated by measuring the photoluminescence intensity variation of PB solution before and after the reaction.
Performance Evaluation: This probe enables precise quantification of carboxyl densities ranging from 0.013 to 0.983 μmol/mg on MWCNTs with high stability and specificity. The quantitative data reliably guide the amidation grafting of n-alkyl chains (C3-C18) and determine the optimal alkyl grafting density (0.390-0.423 μmol/mg for C14 alkyl groups). Combined with TGA and FTIR validation, it supports the screening of C14-C18 alkyl chains as the best modification scheme, which boosts the Young's modulus of PE composites by up to 63% while retaining ductility.
Dementev, Nikolay, et al. Applied surface science 258.24 (2012): 10185-10190.
4-(9-Anthroyloxy)phenacyl bromide (PB) acts as a highly selective and sensitive fluorescent probe for covalent labeling and quantitative analysis of carboxylic groups on multi-walled carbon nanotube (MWCNT) surfaces via the Fluorescence Labeling of Surface Species (FLOSS) method.
Assay Protocol: PB reacts specifically with carboxyl groups on MWCNTs. The carboxylic group content is calculated by measuring the fluorescence intensity depletion of PB solution before and after the reaction, combined with BET specific surface area data. Control experiments are conducted to eliminate interference from physical adsorption of the probe.
Performance Evaluation: This probe exhibits a linear fluorescence response at 4-67 nM and an ultra-high sensitivity of ~109 groups/cm2, far exceeding FTIR and XPS. It accurately quantifies carboxylic groups at 1.10 at.% for as-received MWCNTs and 0.36 at.% for acid-purified MWCNTs. With excellent specificity and reproducibility, PB enables reliable characterization of surface oxygen-containing functionalities, supporting the optimization of MWCNT purification and functional modification processes.
The molecular formula is C23H15BrO3.
The synonyms are Panacyl bromide, 94345-04-7, 4-(9-Anthroyloxy)phenacyl bromide, 4-(2-bromoacetyl)phenyl anthracene-9-carboxylate, [4-(2-bromoacetyl)phenyl] anthracene-9-carboxylate, p-(9-anthroyloxy)phenacyl bromide, 4-(9-Anthroyloxy)-2-bromoacetophenone, SCHEMBL3292986, 9-Anthracenecarboxylic acid, 4-(bromoacetyl)phenyl ester, DTXSID20241433, AKOS025295944, 4-(2-bromoacetyl)phenylanthracene-9-carboxylate, 9-Anthracenecarboxyl acid, 4-(bromoacetyl)phenyl ester, 9-Anthracenecarboxylicacid, 4-(2-bromoacetyl)phenyl ester, 4-(9-ANTHROYLOXY)PHENACYLBROMIDE, FT-0616680, F87581.
The IUPAC name is [4-(2-bromoacetyl)phenyl] anthracene-9-carboxylate.
The InChI is InChI=1S/C23H15BrO3/c24-14-21(25)15-9-11-18(12-10-15)27-23(26)22-19-7-3-1-5-16(19)13-17-6-2-4-8-20(17)22/h1-13H,14H2.
The InChIKey is QHXHFBODVCCJIP-UHFFFAOYSA-N.
The canonical SMILES is C1=CC=C2C(=C1)C=C3C=CC=CC3=C2C(=O)OC4=CC=C(C=C4)C(=O)CBr.
The CAS number is 94345-04-7.
The molecular weight is 419.3 g/mol.
There are 0 hydrogen bond donor counts.
There are 5 rotatable bond counts.
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