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A7300

Sigma-Aldrich

N-Acetylbenzoquinoneimine

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Synonym(s):
N-(4-Oxo-1-cyclohexa-2,5-dienylidene)acetamide, N-Acetyl-p-benzo-quinoneimine, NAPQI
Empirical Formula (Hill Notation):
C8H7NO2
CAS Number:
50700-49-7
Molecular Weight:
149.15
MDL number:
MFCD00078909
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 Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Amaresh Kumar Sahoo et al.
Nanoscale, 3(10), 4226-4233 (2011-09-08)
Herein, we report the generation of a composite comprised of p-hydroxyacetanilide dimer and Ag nanoparticles (NPs) by reaction of AgNO(3) and p-hydroxyacetanilide. The formation of the composite was established by UV-vis, FTIR and NMR spectroscopy, transmission electron microscopy and X-ray
Jean-Matthieu Prot et al.
Toxicology and applied pharmacology, 259(3), 270-280 (2012-01-11)
We have analyzed transcriptomic, proteomic and metabolomic profiles of hepatoma cells cultivated inside a microfluidic biochip with or without acetaminophen (APAP). Without APAP, the results show an adaptive cellular response to the microfluidic environment, leading to the induction of anti-oxidative
Johannes S Hoos et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 859(2), 147-156 (2007-10-05)
A generic method for the detection of covalent adducts to the cysteine-34 residue of human serum albumin (HSA) has been developed, based on an on-line combination of immunoaffinity chromatography for selective sample pre-treatment, solution phase digestion, liquid chromatography and tandem
Laura P James et al.
Drug metabolism and disposition: the biological fate of chemicals, 37(8), 1779-1784 (2009-05-15)
Acetaminophen (APAP)-induced liver toxicity occurs with formation of APAP-protein adducts. These adducts are formed by hepatic metabolism of APAP to N-acetyl-p-benzoquinone imine, which covalently binds to hepatic proteins as 3-(cystein-S-yl)-APAP adducts. Adducts are released into blood during hepatocyte lysis. We
Angela S Burke et al.
Chemical research in toxicology, 23(7), 1286-1292 (2010-06-29)
Acetaminophen (APAP) toxicity in primary mouse hepatocytes occurs in two phases. The initial phase (0-2 h) occurs with metabolism to N-acetyl-p-benzoquinoneimine which depletes glutathione, and covalently binds to proteins, but little toxicity is observed. Subsequent washing of hepatocytes to remove
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