Record Information |
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Version | 2.0 |
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Creation Date | 2009-03-06 18:58:13 UTC |
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Update Date | 2014-12-24 20:21:16 UTC |
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Accession Number | T3D0173 |
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Identification |
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Common Name | trans-1,2-Dichloroethene |
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Class | Small Molecule |
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Description | Trans-1,2-dichloroethene (1,2-DCE) is one of two isomers of 1,2-dichloroethene. It is a highly flammable, colorless liquid with a sharp, harsh odor. 1,2-DCE is used as a solvent for waxes, resins, acetylcellulose, perfumes, dyes, lacquers, thermoplastics, fats, and phenols. It is also used as an intermediate in the preparation of other chlorinated solvents. (3, 4) |
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Compound Type | - Industrial/Workplace Toxin
- Lachrymator
- Organic Compound
- Organochloride
- Pollutant
- Solvent
- Synthetic Compound
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Chemical Structure | |
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Synonyms | Synonym | (E)-1,2-Dichloroethene | (E)-1,2-Dichloroethylene | 1,2-Dichloro Ethylene | 1,2-Dichloroethene | 1,2-Dichloroethylene | 1,2-Dichloroethylene (trans) | 1,2-trans-Dichloroethene | 1,2-trans-Dichloroethylene | 1,trans-2-Dichloroethene | Acetylene dichloride | cis or trans 1,2-Dichloroethene | cis-1,2-Dichloroethylene | Dichloroethylene-trans | Dioform | Ethene,1,2-dichloro | SYM-dichloroethylene | Trans-1, 2-Dichloroethene | Trans-1,2-Dichloroethylene | Trans-acetylene dichloride | Trans-Di-1, 2-chloroethylene | Trans-Di-1,2-Chloroethylene | Trans-dichloroethene | Trans-dichloroethylene |
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Chemical Formula | C2H2Cl2 |
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Average Molecular Mass | 96.943 g/mol |
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Monoisotopic Mass | 95.953 g/mol |
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CAS Registry Number | 156-60-5 |
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IUPAC Name | (E)-1,2-dichloroethene |
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Traditional Name | trans-1,2-dichloroethylene |
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SMILES | Cl\C=C\Cl |
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InChI Identifier | InChI=1S/C2H2Cl2/c3-1-2-4/h1-2H/b2-1+ |
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InChI Key | InChIKey=KFUSEUYYWQURPO-OWOJBTEDSA-N |
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Chemical Taxonomy |
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Description | belongs to the class of organic compounds known as vinyl chlorides. These are vinyl halides in which a chlorine atom is bonded to an sp2-hybridised carbon atom. |
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Kingdom | Organic compounds |
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Super Class | Organohalogen compounds |
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Class | Vinyl halides |
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Sub Class | Vinyl chlorides |
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Direct Parent | Vinyl chlorides |
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Alternative Parents | |
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Substituents | - Chloroalkene
- Haloalkene
- Vinyl chloride
- Hydrocarbon derivative
- Organochloride
- Aliphatic acyclic compound
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Molecular Framework | Aliphatic acyclic 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 | |
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Biofluid Locations | Not Available |
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Tissue Locations | Not Available |
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Pathways | Not Available |
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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 | Liquid |
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Appearance | Colorless liquid. |
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Experimental Properties | Property | Value |
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Melting Point | -49.8°C | Boiling Point | 47.2 °C at 745 mm Hg
48.0 - 48.5 °C at 760 mm Hg | Solubility | 6.41 mg/mL at 25 °C [HORVATH,AL et al. (1999)] | 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 LC-MS/MS | Predicted LC-MS/MS Spectrum - 10V, Positive | splash10-0002-9000000000-c9fdfc15f1ccbff5ce7d | 2016-06-03 | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 20V, Positive | splash10-0002-9000000000-54422779dce25776f3b4 | 2016-06-03 | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 40V, Positive | splash10-03di-9000000000-04c61d11ae47815e6b36 | 2016-06-03 | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 10V, Negative | splash10-0006-9000000000-aa0004925bd4f501180b | 2016-08-03 | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 20V, Negative | splash10-0006-9000000000-e71490525ce311855165 | 2016-08-03 | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 40V, Negative | splash10-0a4i-9000000000-28fe12f941e45c2f6776 | 2016-08-03 | View Spectrum | MS | Mass Spectrum (Electron Ionization) | splash10-03dj-9000000000-018777a851597b716bf7 | 2014-09-20 | View Spectrum | 1D NMR | 1H NMR Spectrum (1D, 300 MHz, TMS, experimental) | Not Available | 2014-09-20 | View Spectrum |
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Toxicity Profile |
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Route of Exposure | Inhalation (3) ; oral (3) ; dermal (3) ; eye contact (3) |
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Mechanism of Toxicity | Trans-1,2-dichloroethene is a volatile, lipophilic molecule that easily moves through the respiratory and gastrointestinal systems. It has a high affinity for lipids and blood, but little accumulation in tissues. 1,2-Dichloroethene isomers inhibit liver enzymes involved in metabolism and may increase the “toxic” response to other chemicals. Reactive metabolites of trans-1,2-dichloroethene modify the heme moiety of hepatic microsomal cytochrome P-450, resulting in a loss of both cytochrome P-450 and heme. Trans-1,2-dichloroethene can also mixed-function oxidase activities. Metabolism of trans-1,2-dichloroethene can lead to dose-related decrease in the levels of serum glutamicoxaloacetic transaminase (SGOT) and serum glutamic-pyruvic transaminase (SGPT). (3) |
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Metabolism | Metabolism of trans-1,2-dichloroethene is initially catalyzed by hepatic microsomal cytochrome P-450. This metabolism is believed to involve epoxidation of the ethylene double bond, forming dichlorinated epoxides. Dichlorinated epoxides, in turn, can undergo a non-enzymatic rearrangement. Studies on the metabolism of 1,2-dichloroethene by hepatic microsomes and hepatocytes provide evidence to suggest that dichloroacetaldehyde is the predominant metabolite of microsomal cytochrome P-450 and that it, in turn, is extensively converted to dichloroethanol and dichloroacetate by cytosolic and/or mitochondrial aldehyde and alcohol dehydrogenases present in hepatocytes. (3) |
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Toxicity Values | LD50: 1 300-10 000 mg/kg/day (Inhalation, Rat) (3) |
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Lethal Dose | Not Available |
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Carcinogenicity (IARC Classification) | No indication of carcinogenicity (not listed by IARC). (2) |
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Uses/Sources | Trans-1,2-DCE is used as a solvent for waxes, resins, acetylcellulose, perfumes, dyes, lacquers, thermoplastics, fats, and phenols. It is also used as an intermediate in the preparation of other chlorinated solvents. One may be exposed by breathing contaminated air, eating, or drinking the substance, or by skin contact (3, 4). |
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Minimum Risk Level | Acute Inhalation: 0.2 ppm (Rat) (3)
Acute Oral: 1 mg/kg/day (Rat) (3)
Intermediate Oral: 0.3 mg/kg/day (3) |
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Health Effects | Breathing trans-1,2-DCE can cause sever liver and kidney damages, pulmonary capillary hyperemia, as well as alveolar septal distention; depression of the central nervous sustem can occur; moderate iritis and conjunctivitis can follow eye exposure; dermatitis and irritation of mucous membranes can follow dermal exposure. Symptoms associated with lethal oral doses included decreased activity, ataxia, suppressed or total loss of righting reflex, and depressed respiration. (3) |
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Symptoms | Symptoms of trans-1,2-DCE exposure include nausea, dowiness, and tiredness. Mild or moderate erythema may follow dermal exposure, and skin or eye irritation can follow dermal/eye contact. (3) |
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Treatment | 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. In case of seizures, administer a benzodiazepine IV. Irrigate exposed eyes with copious amounts of room temperature water for at least 15 minutes in case of eye exposure. Following dermal exposure, remove contaminated clothing and wash exposed area thoroughly with soap and water. Treat dermal irritation or burns with standard topical therapy. Patients developing dermal hypersensitivity reactions may require treatment with systemic or topical corticosteroids or antihistamines. (1) |
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Normal Concentrations |
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| Not Available |
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Abnormal Concentrations |
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| Not Available |
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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 | 638186 |
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ChEMBL ID | Not Available |
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ChemSpider ID | Not Available |
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KEGG ID | C06791 |
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UniProt ID | Not Available |
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OMIM ID | |
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ChEBI ID | 29027 |
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BioCyc ID | 11-DCE |
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CTD ID | Not Available |
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Stitch ID | 1,2-Dichloroethene, trans- |
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PDB ID | Not Available |
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ACToR ID | 3719 |
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Wikipedia Link | Not Available |
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References |
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Synthesis Reference | Not Available |
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MSDS | T3D0173.pdf |
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General References | - Rumack BH (2009). POISINDEX(R) Information System. Englewood, CO: Micromedex, Inc. CCIS Volume 141, edition expires Aug, 2009.
- International Agency for Research on Cancer (2014). IARC Monographs on the Evaluation of Carcinogenic Risks to Humans. [Link]
- ATSDR - Agency for Toxic Substances and Disease Registry (1996). Toxicological profile for trans-1,2-dichloroethene. U.S. Public Health Service in collaboration with U.S. Environmental Protection Agency (EPA). [Link]
- Wikipedia. 1,2-Dichloroethene. Last Updated 7 July 2009. [Link]
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Gene Regulation |
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Up-Regulated Genes | Not Available |
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Down-Regulated Genes | Not Available |
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