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A7300

Sigma-Aldrich

N-Acetylbenzoquinoneimine

Synonym(s):

N-(4-Oxo-1-cyclohexa-2,5-dienylidene)acetamide, N-Acetyl-p-benzo-quinoneimine, NAPQI

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About This Item

Empirical Formula (Hill Notation):
C8H7NO2
CAS Number:
50700-49-7
Molecular Weight:
149.15
MDL number:
MFCD00078909
UNSPSC Code:
12352100
PubChem Substance ID:
57653880
NACRES:
NA.22

form

solid

Quality Level

100

storage temp.

−70°C

SMILES string

CC(=O)\N=C1\C=CC(=O)C=C1

InChI

1S/C8H7NO2/c1-6(10)9-7-2-4-8(11)5-3-7/h2-5H,1H3

InChI key

URNSECGXFRDEDC-UHFFFAOYSA-N

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Application

Reactant involved in:
  • Redox reactions
  • Hydrohalogenation
  • pH dependent reactions: in acidic media it is hydrolyzed, hydroxylated in alkaline media, and dimerized at intermediate pHs
  • Mediation of acetaminophen hepatotoxicity
  • Studies to identify the utility of acetaminophen for treating autoimmune disorders

Other Notes

Acetaminophen metabolite that reacts with serum proteins.

Caution

air, moisture and light sensitive

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Carmen Flores-Pérez et al.
Biomedical chromatography : BMC, 25(7), 760-766 (2010-09-30)
The aim of the present study was to develop a simple, selective and reliable method to quantify acetaminophen and its toxic metabolite N-acetyl-p-benzoquinoneimine (NAPQI) for pediatric studies using 100 µL plasma samples, by reverse-phase HPLC and UV detection. The assay was
Jeffrey L Woodhead et al.
The Journal of pharmacology and experimental therapeutics, 342(2), 529-540 (2012-05-18)
N-acetylcysteine (NAC) is the treatment of choice for acetaminophen poisoning; standard 72-h oral or 21-h intravenous protocols are most frequently used. There is controversy regarding which protocol is optimal and whether the full treatment course is always necessary. It would
Xiang Ma et al.
Bioconjugate chemistry, 21(1), 46-55 (2009-12-05)
The purpose of our paper is to develop and validate a fluorescence-based mouse liver microsomal (MLM) assay in screening pharmaceutical reactive metabolites (RMs) using a glutathione (GSH)-conjugated 96-well plate. Poly(2-hydroxyethylmethacrylate) (pHEMA) polymeric membrane was coated on 96-well plates to provide
Hannah Simon et al.
Analytical chemistry, 84(20), 8777-8782 (2012-09-14)
During the development of new materials demonstrating biological activity, prediction and identification of reactive intermediates generated in the course of drug metabolism in the human liver is of great importance. We present a rapid and purely instrumental method for the
Gregg V Crichlow et al.
Biochemistry, 48(1), 132-139 (2008-12-19)
Macrophage migration inhibitory factor (MIF) is a secreted protein expressed in numerous cell types that counters the antiinflammatory effects of glucocorticoids and has been implicated in sepsis, cancer, and certain autoimmune diseases. Interestingly, the structure of MIF contains a catalytic
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