Record Information |
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Version | 2.0 |
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Creation Date | 2009-03-06 18:58:04 UTC |
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Update Date | 2014-12-24 20:21:06 UTC |
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Accession Number | T3D0094 |
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Identification |
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Common Name | 2,4-Dinitrotoluene |
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Class | Small Molecule |
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Description | 2,4-Dinitrotoluene is the most common of the six dinitrotoluene isomers. Dinitrotoluene (DNT) or Dinitro is an explosive with the formula C6H3(CH3)(NO2)2. At room temperature it is a pale yellow to orange crystalline solid. It is a high explosive and one of the precursors for trinitrotoluene (TNT), which is synthesized through three separate nitrations of toluene. The first product is mononitrotoluene, DNT is the second, and TNT is the third and final product. (15) |
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Compound Type | - Aromatic Hydrocarbon
- Explosive Agent
- Industrial Precursor/Intermediate
- Industrial/Workplace Toxin
- Nitrite
- Organic Compound
- Plasticizer
- Pollutant
- Synthetic Compound
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Chemical Structure | |
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Synonyms | Synonym | 1-Methyl-2,4-dinitrobenzene | 2,4-Dinitro-1-methylbenzene | 2,4-Dinitromethylbenzene | 2,4-Dinitrotoluol | 2,4-DNT | 4-Methyl-1,3-dinitrobenzene | DNT |
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Chemical Formula | C7H6N2O4 |
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Average Molecular Mass | 182.134 g/mol |
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Monoisotopic Mass | 182.033 g/mol |
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CAS Registry Number | 121-14-2 |
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IUPAC Name | 1-methyl-2,4-dinitrobenzene |
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Traditional Name | 2,4-dinitrotoluene |
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SMILES | CC1=C(C=C(C=C1)N(=O)=O)N(=O)=O |
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InChI Identifier | InChI=1S/C7H6N2O4/c1-5-2-3-6(8(10)11)4-7(5)9(12)13/h2-4H,1H3 |
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InChI Key | InChIKey=RMBFBMJGBANMMK-UHFFFAOYSA-N |
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Chemical Taxonomy |
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Description | belongs to the class of organic compounds known as dinitrotoluenes. These are organic aromatic compounds containing a benzene that carries a single methyl group and exactly two nitro groups. |
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Kingdom | Organic compounds |
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Super Class | Benzenoids |
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Class | Benzene and substituted derivatives |
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Sub Class | Toluenes |
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Direct Parent | Dinitrotoluenes |
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Alternative Parents | |
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Substituents | - Dinitrotoluene
- Nitrobenzene
- Nitroaromatic compound
- C-nitro compound
- Organic nitro compound
- Organic oxoazanium
- Allyl-type 1,3-dipolar organic compound
- Propargyl-type 1,3-dipolar organic compound
- Organic 1,3-dipolar compound
- Organic nitrogen compound
- Hydrocarbon derivative
- Organic oxide
- Organonitrogen compound
- Organopnictogen compound
- Organic oxygen compound
- Aromatic homomonocyclic compound
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Molecular Framework | Aromatic homomonocyclic compounds |
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External Descriptors | |
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Biological Properties |
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Status | Detected and Not Quantified |
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Origin | Exogenous |
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Cellular Locations | - Cell junction
- Cytosol
- Endoplasmic reticulum
- Extracellular
- Membrane
- Membrane Fraction
- Microsome
- Mitochondrion
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Biofluid Locations | Not Available |
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Tissue Locations | Not Available |
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Pathways | Name | SMPDB Link | KEGG Link |
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Apoptosis | Not Available | map04210 | Oxidative phosphorylation | Not Available | map00190 | Naphthalene Degradation | Not Available | Not Available | Degradation Of Aromatic Compounds | Not Available | Not Available | Caffeine Metabolism | SMP00028 | map00232 |
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Applications | Not Available |
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Biological Roles | Not Available |
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Chemical Roles | Not Available |
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Physical Properties |
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State | Solid |
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Appearance | At room temperature it is a pale yellow to orange crystalline solid. (19) |
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Experimental Properties | Property | Value |
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Melting Point | 71°C | Boiling Point | 250-300°C (decomposes) | Solubility | 0.2 mg/mL at 25 °C [PHELAN,JM & BARNETT,JL (2001)]; 0.27 mg/mL at 22 °C [SEIDELL,A (1941)] | LogP | Not Available |
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Predicted Properties | |
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Spectra |
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Spectra | Spectrum Type | Description | Splash Key | Deposition Date | View |
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Predicted GC-MS | Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive | splash10-01q9-8900000000-8c713ce1ff2117a2ada5 | 2021-09-23 | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 10V, Positive | splash10-001i-0900000000-ff5582d43de35b65047b | 2016-08-02 | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 20V, Positive | splash10-0a6r-0900000000-814205d8ac41814fcb9c | 2016-08-02 | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 40V, Positive | splash10-056r-0900000000-66644cf7bead7f4e163a | 2016-08-02 | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 10V, Negative | splash10-001i-0900000000-a945c933127e627e04f8 | 2016-08-03 | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 20V, Negative | splash10-001i-0900000000-0ff4810f78737ce86f22 | 2016-08-03 | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 40V, Negative | splash10-00e9-1900000000-dbb610db7909036e4b3b | 2016-08-03 | View Spectrum | MS | Mass Spectrum (Electron Ionization) | splash10-014r-9500000000-fd5b3e80ec9cfe014f6d | 2014-09-20 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 25.16 MHz, CDCl3, experimental) | Not Available | 2014-09-23 | View Spectrum |
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Toxicity Profile |
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Route of Exposure | Dermal (9) ; eye contact (9) ; inhalation (9) ; oral (9) |
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Mechanism of Toxicity | 2,4-DNT may cause conversion of oxyhemoglobin to methemoglobin via oxidation of iron(II) to iron(III) by its metabolites. High levels of methemoglobin are removed by catabolism, leading to the development of anemia. Some metabolites of 2,4-DNT are also transported back from the bile to the liver, where the amine group is N-hydroxylated by cytochrome P-450 to form an unstable sulfate conjugate. The sulfate conjugate is degraded into carbonium or nitrenium ions. These ions covalently bind to hepatic macromolecules (DNA, RNA), leading to mutations and subsequently liver tumors. They also bind to DNA of the lung and the intestine. (17, 10, 3, 18) |
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Metabolism | 2,4-Dinitrotoluene can be inhalated as fumes or dust, ingested, or absorbed after contact with the skin. Bioactivation of 2,4-DNT is thought to occur by the following processes: The methyl group is oxidized to an alcohol by a cytochrome P-450 dependent pathway; the benzyl alcohol is conjugated with glucuronic acid and excreted in the bile. Intestinal microflora hydrolyzes the glucuronide and reduces one nitro group, forming an aminonitrobenzyl alcohol which can be readsorbed from the intestine. The amino group is oxidized to an hydroxylamine by hepatic enzymes and conjugated with sulfate, by sulfotransferase. Decomposition of the sulfate ester yields a highly electrophilic nitrenium (or carbonium) ion which can react with DNA and other biological nucleophiles. The major metabolite found in human urine is 2,4-dinitrobenzyl alcohol or its glucuronide conjugate. Other urinary metabolites include 2,4-dinitrobenzoic acid, 4-(N-acetyl)amino-2nitrobenzoic acid, and 2-amino-4-nitrobenzoic acid. The latter two are clearly the product of both oxidative and reductive metabolism. Metabolism is also believed to involve O-acetyltransferase (which transfers the acetyl group of 2,4-DNT) and cytosolic xanthine oxidase (which reduces 2,4-DNT). Small traces of unmetabolized 2,4-DNT can be observed in the urine too. (17, 1, 11, 2, 4, 5) |
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Toxicity Values | LD50: 268 mg/kg (Oral, Rat) (6)
LD50: 790 mg/kg (Oral, Mouse) (6)
LD50: 1300 mg/kg (Oral, Guinea pig) (6) |
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Lethal Dose | Not Available |
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Carcinogenicity (IARC Classification) | 2B, possibly carcinogenic to humans. (14) |
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Uses/Sources | It is a high explosive and one of the precursors for trinitrotoluene (TNT), which is synthesized through three separate nitrations of toluene. 2,4-Dinitrotoluene can affect the body if it is inhaled, comes in contact with the eyes or skin, is swallowed, or is absorbed through the skin. Even a small amount absorbed from clothes or shoes may cause toxic symptoms. It is assumed that oral ingestion could be a secondary route for occupationally exposed humans. (15, 9) |
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Minimum Risk Level | Acute Oral: 0.05 mg/kg/day (13)
Chronic Oral: 0.002 mg/kg/day (13) |
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Health Effects | 2,4-Dinitrotoluene poisoning may cause methemoglobinemia, anemia, leukopenia, and liver necrosis. Liver injury may be more common than cyanosis. (12, 17) |
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Symptoms | Symptoms of 2,4-dinitrotoluene poisoning include blue lips or finger nails, blue skin, vertigo, fatigue, dizziness, weakness, nausea, vomiting, dyspnea, arthralgia, insomnia, tremor, paralysis, unconsciousness, chest pain, shortness of breath, palpitation, anorexia, and loss of weight. (10, 16) |
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Treatment | Following oral exposure, immediately dilute with 4 to 8 ounces (120 to 240 mL) of water or milk (not to exceed 4 ounces/120 mL in a child). Administer charcoal as a slurry. Gastric lavage and oxygen administration is recommended. Following inhalation exposure, move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with inhaled beta2 agonist and oral or parenteral corticosteroids. Following eyes exposure, irrigate exposed eyes with copious amounts of room temperature water for at least 15 minutes. Following dermal exposure, remove contaminated clothing and wash exposed area thoroughly with soap and water, and administer a benzodiazepine IV in case of irritation. In all those cases, a physician may need to examine the area if irritation or pain persists. (8) |
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Normal Concentrations |
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Abnormal Concentrations |
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External Links |
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DrugBank ID | Not Available |
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HMDB ID | Not Available |
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PubChem Compound ID | 8461 |
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ChEMBL ID | CHEMBL259865 |
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ChemSpider ID | 8150 |
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KEGG ID | C11006 |
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UniProt ID | Not Available |
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OMIM ID | |
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ChEBI ID | 920 |
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BioCyc ID | CPD-1125 |
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CTD ID | C016403 |
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Stitch ID | 2,4-Dinitrotoluene |
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PDB ID | Not Available |
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ACToR ID | 539 |
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Wikipedia Link | 2,4-Dinitrotoluene |
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References |
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Synthesis Reference | Not Available |
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MSDS | T3D0094.pdf |
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General References | - Guest D, Schnell SR, Rickert DE, Dent JG: Metabolism of 2,4-dinitrotoluene by intestinal microorganisms from rat, mouse, and man. Toxicol Appl Pharmacol. 1982 Jun 15;64(1):160-8. [7112581 ]
- Turner MJ Jr, Levine RJ, Nystrom DD, Crume YS, Rickert DE: Identification and quantification of urinary metabolites of dinitrotoluenes in occupationally exposed humans. Toxicol Appl Pharmacol. 1985 Aug;80(1):166-74. [4024104 ]
- Dixit R, Schut HA, Klaunig JE, Stoner GD: Metabolism and DNA binding of 2,6-dinitrotoluene in Fischer-344 rats and A/J mice. Toxicol Appl Pharmacol. 1986 Jan;82(1):53-61. [3945944 ]
- Mori M, Matsuhashi T, Miyahara T, Shibata S, Izima C, Kozuka H: Reduction of 2,4-dinitrotoluene by Wistar rat liver microsomal and cytosol fractions. Toxicol Appl Pharmacol. 1984 Oct;76(1):105-12. [6548324 ]
- Gong P, Kuperman RG, Sunahara GI: Genotoxicity of 2,4- and 2,6-dinitrotoluene as measured by the Tradescantia micronucleus (Trad-MCN) bioassay. Mutat Res. 2003 Jul 8;538(1-2):13-8. [12834750 ]
- Lewis RJ (1996). Sax's Dangerous Properties of Industrial Materials. 9th ed. Volumes 1-3. New York, NY: Van Nostrand Reinhold.
- Verschueren K (1983). Handbook of Environmental Data of Organic Chemicals. 2nd ed. New York, NY: Van Nostrand Reinhold Co.
- Rumack BH (2009). POISINDEX(R) Information System. Englewood, CO: Micromedex, Inc. CCIS Volume 141, edition expires Aug, 2009.
- Mackison FW, Stricoff RS, and Partridge LJ Jr. (eds) (1981). NIOSH/OSHA - Occupational Health Guidelines for Chemical Hazards. DHHS(NIOSH) Publication No. 81-123 (3 VOLS). Washington, DC: U.S. Government Printing Office.
- USEPA (1980). Ambient Water Quality Criteria Doc: Dinitrotoluene. EPA 440/5-80-045.
- Turner MJ; CIIT 6 (2): 1-3 (1986)
- Gosselin RE, Smith RP, and Hodge HC (1984). Clinical Toxicology of Commercial Products. 5th ed. Baltimore: Williams and Wilkins.
- ATSDR - Agency for Toxic Substances and Disease Registry (2001). Minimal Risk Levels (MRLs) for Hazardous Substances. U.S. Public Health Service in collaboration with U.S. Environmental Protection Agency (EPA). [Link]
- International Agency for Research on Cancer (2014). IARC Monographs on the Evaluation of Carcinogenic Risks to Humans. [Link]
- Wikipedia. 2,4-Dinitrotoluene. Last Updated 10 June 2009. [Link]
- International Programme on Chemical Safety (IPCS) INCHEM (2005). Poison Information Monograph for 2,4-Dinitrotoluene. [Link]
- ATSDR - Agency for Toxic Substances and Disease Registry (1998). Toxicological profile for 2,4-,and 2,6-dinitrotoluene. U.S. Public Health Service in collaboration with U.S. Environmental Protection Agency (EPA). [Link]
- US Environmental Protection Agency (2008). Drinking Water Health Advisory for 2,4-Dinitrotoluene and 2,6-Dinitrotoluene. [Link]
- Wikipedia. Dinitrotoluene. Last Updated 10 June 2009. [Link]
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Gene Regulation |
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Up-Regulated Genes | Gene | Gene Symbol | Gene ID | Interaction | Chromosome | Details |
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Down-Regulated Genes | Not Available |
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