Classification Term: 3237

Nitrophenols (ontology term: CHEMONTID:0000141)

Compounds containing a nitrophenol moiety, which consists of a benzene ring bearing both a hydroxyl group and a nitro group on two different ring carbon atoms." []

found 23 associated metabolites at sub_class metabolite taxonomy ontology rank level.

Ancestor: Phenols

Child Taxonomies: Dinitrophenols, Metal p-nitrophenoxides

4-Nitrocatechol

4-nitro-Pyrocatechol4-nitropyrocatechol NSC 80651

C6H5NO4 (155.021857)


4-Nitrocatechol is the by-product of the hydroxylation of 4-Nitrophenol by the human cytochrome P450 (CYP) 2E1. This reaction is a useful metabolic marker for the presence of functional cytochrome P450 2E1 in mammalian cell microsomes. Hepatic and extrahepatic microsomal cytochrome P450 isozymes further catalyze the reduction of p-nitrocatechol to p-aminophenol. (PMID: 8267647, 8214571, 8267647) [HMDB] 4-Nitrocatechol is the by-product of the hydroxylation of 4-nitrophenol by the human cytochrome P450 (CYP) 2E1. This reaction is a useful metabolic marker for the presence of functional cytochrome P450 2E1 in mammalian cell microsomes. Hepatic and extrahepatic microsomal cytochrome P450 isozymes further catalyze the reduction of p-nitrocatechol into p-aminophenol (PMID: 8267647, 8214571, 8267647). 4-Nitrocatechol is a potent lipoxygenase inhibitor[1]. 4-Nitrocatechol is a potent lipoxygenase inhibitor[1].

   

4-Nitrophenol

4-Nitrophenol, sodium salt, (2:1), dihydrate

C6H5NO3 (139.02694200000002)


4-Nitrophenol (also called p-nitrophenol or 4-hydroxynitrobenzene) is a phenolic compound that has a nitro group at the opposite position of the hydroxyl group on the benzene ring. It belongs to the class of organic compounds known as nitrophenols. Nitrophenols are compounds containing a nitrophenol moiety, which consists of a benzene ring bearing both a hydroxyl group and a nitro group on two different ring carbon atoms. 4-Nitrophenol shows two polymorphs in the crystalline state. The alpha-form is colorless pillars, unstable at room temperature, and stable toward sunlight. The beta-form is yellow pillars, stable at room temperature, and gradually turns red upon irradiation of sunlight. Usually 4-nitrophenol exists as a mixture of these two forms. 4-Nitrophenol can be used as a pH indicator and as an intermediate in the synthesis of paracetamol. Itis also used as the precursor for the preparation of phenetidine and acetophenetidine, indicators, and raw materials for fungicides. Bioaccumulation of this compound rarely occurs. In peptide synthesis, carboxylate ester derivatives of 4-nitrophenol may serve as activated components for construction of amide moieties. 4-Nitrophenol is a potentially toxic compound: it can cause eyes, skin, and respiratory tract irritations. It may also cause inflammation of those parts. It has a delayed interaction with blood and forms methaemoglobin which is responsible for methemoglobinemia -which is characterized by tissue hypoxia, as methemoglobin cannot bind oxygen-, potentially causing cyanosis, confusion, and unconsciousness. When ingested, it causes abdominal pain and vomiting. Prolonged contact with skin may cause allergic response. Genotoxicity and carcinogenicity of 4-nitrophenol are not known. The LD50 in mice is 282 mg/kg and in rats is 202 mg/kg. Outside of the human body, 4-Nitrophenol has been detected, but not quantified in cow milk. Conjugates are more polar than the parent compounds and therefore are easier to excrete in the urine. CONFIDENCE standard compound; INTERNAL_ID 1202; DATASET 20200303_ENTACT_RP_MIX504; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3370; ORIGINAL_PRECURSOR_SCAN_NO 3368 CONFIDENCE standard compound; INTERNAL_ID 1202; DATASET 20200303_ENTACT_RP_MIX504; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3384; ORIGINAL_PRECURSOR_SCAN_NO 3382 CONFIDENCE standard compound; INTERNAL_ID 1202; DATASET 20200303_ENTACT_RP_MIX504; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3386; ORIGINAL_PRECURSOR_SCAN_NO 3382 CONFIDENCE standard compound; INTERNAL_ID 1202; DATASET 20200303_ENTACT_RP_MIX504; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3360; ORIGINAL_PRECURSOR_SCAN_NO 3357 CONFIDENCE standard compound; INTERNAL_ID 1202; DATASET 20200303_ENTACT_RP_MIX504; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3383; ORIGINAL_PRECURSOR_SCAN_NO 3379 CONFIDENCE standard compound; INTERNAL_ID 1202; DATASET 20200303_ENTACT_RP_MIX504; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9235; ORIGINAL_PRECURSOR_SCAN_NO 9231 CONFIDENCE standard compound; INTERNAL_ID 1202; DATASET 20200303_ENTACT_RP_MIX504; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9286; ORIGINAL_PRECURSOR_SCAN_NO 9282 CONFIDENCE standard compound; INTERNAL_ID 1202; DATASET 20200303_ENTACT_RP_MIX504; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9273; ORIGINAL_PRECURSOR_SCAN_NO 9268 CONFIDENCE standard compound; INTERNAL_ID 1202; DATASET 20200303_ENTACT_RP_MIX504; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9283; ORIGINAL_PRECURSOR_SCAN_NO 9278 CONFIDENCE standard compound; INTERNAL_ID 1202; DATASET 20200303_ENTACT_RP_MIX504; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3372; ORIGINAL_PRECURSOR_SCAN_NO 3370 CONFIDENCE standard compound; INTERNAL_ID 982; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3485; ORIGINAL_PRECURSOR_SCAN_NO 3484 CONFIDENCE standard compound; INTERNAL_ID 982; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3494; ORIGINAL_PRECURSOR_SCAN_NO 3493 CONFIDENCE standard compound; INTERNAL_ID 982; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3463; ORIGINAL_PRECURSOR_SCAN_NO 3462 CONFIDENCE standard compound; INTERNAL_ID 982; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3492; ORIGINAL_PRECURSOR_SCAN_NO 3491 CONFIDENCE standard compound; INTERNAL_ID 982; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3496; ORIGINAL_PRECURSOR_SCAN_NO 3495 4-Nitrophenol is a phenolic metabolite of environmental chemicals present in samples from the general population. Acquisition and generation of the data is financially supported in part by CREST/JST. CONFIDENCE standard compound; INTERNAL_ID 2298

   

3-Nitrophenol

1-Hydroxy-3-nitrobenzene

C6H5NO3 (139.02694200000002)


   

2-Nitrophenol

2-Nitrophenol, ammonium salt

C6H5NO3 (139.02694200000002)


CONFIDENCE standard compound; INTERNAL_ID 1124; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3496; ORIGINAL_PRECURSOR_SCAN_NO 3495 ORIGINAL_PRECURSOR_SCAN_NO 3493; CONFIDENCE standard compound; INTERNAL_ID 1124; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3494 CONFIDENCE standard compound; INTERNAL_ID 1124; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3485; ORIGINAL_PRECURSOR_SCAN_NO 3484 CONFIDENCE standard compound; INTERNAL_ID 1124; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3492; ORIGINAL_PRECURSOR_SCAN_NO 3491 DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3492; CONFIDENCE standard compound; INTERNAL_ID 1124; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; ORIGINAL_PRECURSOR_SCAN_NO 3491 CONFIDENCE standard compound; INTERNAL_ID 1124; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3463; ORIGINAL_PRECURSOR_SCAN_NO 3462 CONFIDENCE standard compound; INTERNAL_ID 1124; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3494; ORIGINAL_PRECURSOR_SCAN_NO 3493

   

2,6-Diiodo-4-nitrophenol

phenol, 2,6-diiodo-4-nitro-

C6H3I2NO3 (390.82024680000006)


C254 - Anti-Infective Agent > C276 - Antiparasitic Agent > C250 - Antihelminthic Agent

   

2-Amino-4-nitrophenol

2-Amino-p-nitrophenol

C6H6N2O3 (154.03784059999998)


CONFIDENCE standard compound; INTERNAL_ID 768; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2100; ORIGINAL_PRECURSOR_SCAN_NO 2099 CONFIDENCE standard compound; INTERNAL_ID 768; DATASET 20200303_ENTACT_RP_MIX507; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2731; ORIGINAL_PRECURSOR_SCAN_NO 2730 CONFIDENCE standard compound; INTERNAL_ID 768; DATASET 20200303_ENTACT_RP_MIX507; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2711; ORIGINAL_PRECURSOR_SCAN_NO 2710 CONFIDENCE standard compound; INTERNAL_ID 768; DATASET 20200303_ENTACT_RP_MIX507; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2712; ORIGINAL_PRECURSOR_SCAN_NO 2711 CONFIDENCE standard compound; INTERNAL_ID 768; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2128; ORIGINAL_PRECURSOR_SCAN_NO 2127 CONFIDENCE standard compound; INTERNAL_ID 768; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2132; ORIGINAL_PRECURSOR_SCAN_NO 2131

   

4-Amino-2-nitrophenol

phenol, 4-amino-2-nitro-

C6H6N2O3 (154.03784059999998)


CONFIDENCE standard compound; INTERNAL_ID 769; DATASET 20200303_ENTACT_RP_MIX507; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2711; ORIGINAL_PRECURSOR_SCAN_NO 2710 CONFIDENCE standard compound; INTERNAL_ID 769; DATASET 20200303_ENTACT_RP_MIX507; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2722; ORIGINAL_PRECURSOR_SCAN_NO 2721 CONFIDENCE standard compound; INTERNAL_ID 769; DATASET 20200303_ENTACT_RP_MIX507; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2705; ORIGINAL_PRECURSOR_SCAN_NO 2704 CONFIDENCE standard compound; INTERNAL_ID 769; DATASET 20200303_ENTACT_RP_MIX507; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2731; ORIGINAL_PRECURSOR_SCAN_NO 2730 CONFIDENCE standard compound; INTERNAL_ID 769; DATASET 20200303_ENTACT_RP_MIX507; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2741; ORIGINAL_PRECURSOR_SCAN_NO 2740 CONFIDENCE standard compound; INTERNAL_ID 769; DATASET 20200303_ENTACT_RP_MIX507; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2712; ORIGINAL_PRECURSOR_SCAN_NO 2711

   

2-Nitro-p-cresol

4-Methyl-2-nitrophenol

C7H7NO3 (153.0425912)


2-Nitro-p-cresol belongs to the family of Nitrophenols and Derivatives. These are compounds containing a nitrophenol moiety, which consists of a benzene ring bearing both an hydroxyl group and a nitro group on two different ring carbon atoms.

   

2,4-Dihydroxy-nitrophenol

2,4 dihydroxy nitrophenol

C6H5NO4 (155.021857)


2,4-dihydroxy-nitrophenol is a byproduct of paranitrophenol (PNP) degradation from microbial action in the gut. [HMDB] 2,4-dihydroxy-nitrophenol is a byproduct of paranitrophenol (PNP) degradation from microbial action in the gut.

   

Roxarsone

As-(4-hydroxy-3-nitrophenyl)-arsonic acid

C6H6AsNO6 (262.9411076)


Roxarsone is used to control enteric infections in chicken and to improve growth and feed efficiency. Roxarsone is a fda approved additive for chicken, turkey and swine feeds. It is used to control enteric infections in chicken and to improve growth and feed efficiency. FDA approved additive for chicken, turkey and swine feeds. D000890 - Anti-Infective Agents > D000977 - Antiparasitic Agents > D000981 - Antiprotozoal Agents C254 - Anti-Infective Agent > C276 - Antiparasitic Agent > C277 - Antiprotozoal Agent D000890 - Anti-Infective Agents > D000900 - Anti-Bacterial Agents

   

4-hydroxy-3-nitrophenylacetate

2-(4-HYDROXY-3-nitrophenyl)acetIC ACID

C8H7NO5 (197.0324212)


4-hydroxy-3-nitrophenylacetate, also known as 3-nitro-4-hydroxyphenylacetic acid, is slightly soluble (in water). It is a mildly acidic compound. This metabolite is a member of the class of compounds known as nitrophenols. Nitrophenols are compounds containing a nitrophenol moiety, which consists of a benzene ring bearing both a hydroxyl group and a nitro group on two different ring carbon atoms. Free nitrotyrosine undergoes metabolism to form 3-nitro-4-hydroxyphenylacetic acid (NHPA) which is excreted in the urine (Wikipedia). However, it is not known whether NHPA is derived exclusively from metabolism of nitrotyrosine, or whether it can be formed by nitration of circulating para -hydroxyphenylacetic acid (PHPA), a metabolite of tyrosine (PMID: 12797864). Since the plasma concentration of PHPA is markedly higher than free nitrotyrosine (approx. 400-fold), the nitration of high-circulating endogenous PHPA to form NHPA becomes very significant and accounts for the majority of NHPA excreted in urine (PMID: 12797864).

   

2-Chloro-4-nitrophenol

2-Chloro-4-nitrophenol

C6H4ClNO3 (172.9879704)


   
   
   

3-Methyl-4-nitrophenol

4-Nitro-3-cresol, sodium salt

C7H7NO3 (153.0425912)


   

3-Nitrobenzene-1,2-diol

3-Nitrobenzene-1,2-diol

C6H5NO4 (155.021857)


   

4-Hydroxy-3-nitrophenyl acetate

4-Hydroxy-3-nitrophenyl acetic acid

C8H7NO5 (197.0324212)


   

4-Hydroxy-3-nitrophenylacetaldehyde

2-(4-Hydroxy-3-nitrophenyl)acetaldehyde

C8H7NO4 (181.0375062)


   

4-Nitro-3-(trifluoromethyl)phenol

alpha,alpha,alpha-trifluoro-4-nitro-m-Cresol

C7H4F3NO3 (207.01432699999998)


   

Tyrphostin AG 126

2-[(3-hydroxy-4-nitrophenyl)methylidene]propanedinitrile

C10H5N3O3 (215.03309000000002)


D000970 - Antineoplastic Agents > D020032 - Tyrphostins D004791 - Enzyme Inhibitors AG126 is a tyrosine kinase inhibitor, can inhibit the phosphorylation of ERK1 and ERK2 at 25-50 μM. AG126 can be used in meiosis, mitosis, and postmitotic research[1][2][3][4].

   

(4-Hydroxy-3-iodo-5-nitrophenyl)acetic acid

2-(4-Hydroxy-3-iodo-5-nitrophenyl)acetic acid

C8H6INO5 (322.9290736)


   

Nitroxinil

4-hydroxy-3-iodo-5-nitrobenzonitrile

C7H3IN2O3 (289.9188438)


D000890 - Anti-Infective Agents > D000977 - Antiparasitic Agents > D000871 - Anthelmintics C254 - Anti-Infective Agent > C276 - Antiparasitic Agent > C250 - Antihelminthic Agent

   

Picric acid

2-Hydroxy-1,3,5-trinitrobenzene

C6H3N3O7 (228.9971008)


Picric acid, also known as acide picrique or c.i. 10305, belongs to the class of organic compounds known as nitrophenols. Nitrophenols are compounds containing a nitrophenol moiety, which consists of a benzene ring bearing both a hydroxyl group and a nitro group on two different ring carbon atoms. Based on a literature review a significant number of articles have been published on Picric acid. This compound has been identified in human blood as reported by (PMID: 31557052 ). Picric acid is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Picric acid is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources. Picric acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=88-89-1 (retrieved 2024-07-10) (CAS RN: 88-89-1). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).