2,2',3,3',4',5,6-七氯联苯 | 52663-70-4

• 物质功能分类: 分析化学 - 食品安全 - 二噁英，多氯联苯，呋喃
• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 2,2',3,3',4',5,6-七氯联苯
• 英文名称: 2,2',3,3',4,5',6'-heptachlorobiphenyl
• 英文别名: 2,2',3,3',4',5,6-heptachlorobiphenyl；2,2',3,3',4,5',6'-hexachlorobiphenyl；2,2',3,3',4',5,6-Hexachlorobiphenyl；PCB 177；PCB-177；1,2,4,5-tetrachloro-3-(2,3,4-trichlorophenyl)benzene
• CAS: 52663-70-4
• 化学式: C₁₂H₃Cl₇
• 分子量: 395.327
• InChiKey: CXOYNJAHPUASHN-UHFFFAOYSA-N

物化性质

• 熔点：
  131.31°C (estimate)
• 沸点：
  479.43°C (rough estimate)
• 密度：
  1.6580 (rough estimate)
• 溶解度：
  3.80e-09 M
• 保留指数：
  2417.7;2443.1;2410.8;2453.5;2410;2400;2403

计算性质

• 辛醇/水分配系数(LogP)：
  7.4
• 重原子数：
  19
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

ADMET

代谢

多氯联苯(PCBs)通过吸入、口服和皮肤接触途径被吸收。它们通过血液运输，通常与白蛋白结合。由于它们的亲脂性特性，它们倾向于在富含脂质的组织中积累，如肝脏、脂肪组织和皮肤。多氯联苯的代谢非常缓慢，并且根据氯化的程度和位置而有所不同。多氯联苯通过微粒体单加氧酶系统代谢，该系统由细胞色素P-450酶催化，转化为极性代谢物，这些代谢物可以与谷胱甘肽和葡萄糖醛酸结合。主要的代谢物是羟基化产物，通过胆汁和粪便排出。多氯联苯的缓慢代谢意味着它们倾向于在身体组织中积累。(L4, T6)

PCBs are absorbed via inhalation, oral, and dermal routes of exposure. They are trasported in the blood, often bound to albumin. Due to their lipophilic nature they tend to accumulate in lipid-rich tissues, such as the liver, adipose, and skin. Metabolism of PCBs is very slow and varies based on the degree and position of chlorination. PCBs are metabolized by the microsomal monooxygenase system catalyzed by cytochrome P-450 enzymes to polar metabolites that can undergo conjugation with glutathione and glucuronic acid. The major metabolites are hydroxylated products which are excreted in the bile and faeces. The slow metabolism of PCBs means they tend to accumulate in body tissues. (L4, T6)

来源:Toxin and Toxin Target Database (T3DB)

毒理性

• 毒性总结

PCB的作用机制因具体类型而异。类二噁烷PCB通过结合芳基烃受体，通过改变基因的转录来扰乱细胞功能，主要是通过诱导肝脏第一阶段和第二阶段酶的表达，特别是细胞色素P450家族。PCB的大多数毒性效应被认为是由Ah受体结合的结果。其他PCB被认为会干扰钙通道和/或改变大脑中的多巴胺水平。PCB还通过改变甲状腺激素的生成和结合到雌激素受体来引起内分泌紊乱，这可以刺激某些癌细胞的生长并产生其他雌激素效应，如生殖功能障碍。它们会通过结合到如uteroglobin等受体蛋白而生物累积。(A3, A4, A30, A66)

The mechanism of action varies with the specific PCB. Dioxin-like PCBs bind to the aryl hydrocarbon receptor, which disrupts cell function by altering the transcription of genes, mainly be inducing the expression of hepatic Phase I and Phase II enzymes, especially of the cytochrome P450 family. Most of the toxic effects of PCBs are believed to be results of Ah receptor binding. Other PBCs are believed to interfere with calcium channels and/or change brain dopamine levels. PCBs can also cause endocrine disurption by altering the production of thyroid hormones and binding to estrogen receptors, which can stimulate the growth of certain cancer cells and produce other estrogenic effects, such as reproductive dysfunction. They will bioaccumulate by binding to receptor proteins such as uteroglobin. (A3, A4, A30, A66)

来源:Toxin and Toxin Target Database (T3DB)

毒理性

• 致癌物分类

1, 对人类致癌。

1, carcinogenic to humans. (L135)

来源:Toxin and Toxin Target Database (T3DB)

毒理性

• 健康影响

多氯联苯最常见的健康影响是皮肤状况，如氯痤疮和皮疹。长期暴露于多氯联苯还会导致肝脏、胃和肾脏损伤、黄疸、水肿、贫血、免疫系统变化、行为改变以及生殖能力受损。

The most common health effects of PCBs are skin conditions such as chloracne and rashes. Chronic PCB exposure has also been shown to cause liver, stomach and kidney, damage, jaundice, edema, anemia, changes in the immune system, behavioral alterations, and impaired reproduction. (L4)

来源:Toxin and Toxin Target Database (T3DB)

毒理性

• 暴露途径

口服（L4级）；吸入（L4级）；皮肤给药

Oral (L4) ; inhalation (L4) ; dermal

来源:Toxin and Toxin Target Database (T3DB)

毒理性

• 症状

慢性PCB暴露会导致如下症状：腹痛、恶心、呕吐、腹泻、头痛、眩晕、抑郁、紧张、皮肤和眼睛损伤、疲劳、月经周期不规律以及免疫力下降。

Chronic PCB exposure results in symptoms such as abdominal pain, nausea, vomiting, diarrhea, headache, dizziness, depression, nervousness, dermal and ocular lesions, fatigue, irregular menstrual cycles and a lowered immune response. (A3)

来源:Toxin and Toxin Target Database (T3DB)

安全信息

• 海关编码：
  2903999090
• 储存条件：
  室温

反应信息

• 作为产物：
  描述：

  2,3,5,6-四氯苯胺 、 三氯苯 在 亚硝酸异戊酯 作用下， 生成 2,2',3,3',4',5,6-七氯联苯
  参考文献：
  名称：

  Physical, spectral and chromatographic properties of all 209 individual PCB congeners

  摘要：

  Physical, spectral and chromatographic data for all 209 individual PCB congeners is presented. The individual congeners were synthesized and then isolated and purified. Recent emphasis on the source of the toxicity of commercial PCB formulations has increased the need for a complete set of the PCB congeners. Through the use of two capillary GC columns: 40% octadecyl/ 15% phenyl methyl siloxane and 50% phenyl methyl siloxane, it was possible to separate 201 PCB congeners with only four unresolved pairs. The data compiled in this study for all 209 congeners will aid in the identification of selected individual components of these environmental pollutants. The use of this data also presents the opportunity for the improved quantification of the commercial PCB formulations.

  DOI：

  10.1016/0045-6535(95)00140-4

文献信息

• EP1616022A2
  申请人：——

  公开号：EP1616022A2

  公开（公告）日：2006-01-18
• [EN] TEST SYSTEM<br/>[FR] SYSTEME DE TEST
  申请人：CROWN VISION SYSTEMS LTD

  公开号：WO2004090156A2

  公开（公告）日：2004-10-21

  An assay is provided for assaying a sample of soil, sand, sediment or other particulate material for the presence of contaminants such as polycyclic aromatic hydrocarbons (PAHs), organic pesticides, petroleum hydrocarbons, or polychlorinated biphenyls (PCBs), and preferably comprises: extracting an assayable amount of the contaminant from the particulate material into a water-miscible solvent, such as an organic alcohol, capable of dissolving the contaminant, the solvent optionally containing a surfactant; mixing the resultant solvent solution of the contaminant with water and optionally a surfactant, for example to a dilution factor between about 10 and about 25, whereby a mixture is obtained containing water, solvent, surfactant and any extracted contaminant; and exposing the bioluminescent organism Vibrio fischeri to the mixture under conditions in which the inhibition, by the contaminant, of light emitted by the organism can be related to the presence of the contaminant in the mixture. The method is sufficiently quantitative that it can be determined whether the contaminant is present in the particulate material at a concentration above or below a certain - e.g. a legally specified - level. A test kit is provided, whereby the method can be performed in the field and the result showing whether the contaminant is present at a legally acceptable or unacceptable level can be displayed.
• Physical, spectral and chromatographic properties of all 209 individual PCB congeners
  作者：Michael Bolgar、James Cunningham、Russell Cooper、Richard Kozloski、Jack Hubball、Don P. Miller、Terry Crone、Harry Kimball、Anita Janooby、Barry Miller、Billy Fairless

  DOI：10.1016/0045-6535(95)00140-4

  日期：1995.7

  Physical, spectral and chromatographic data for all 209 individual PCB congeners is presented. The individual congeners were synthesized and then isolated and purified. Recent emphasis on the source of the toxicity of commercial PCB formulations has increased the need for a complete set of the PCB congeners. Through the use of two capillary GC columns: 40% octadecyl/ 15% phenyl methyl siloxane and 50% phenyl methyl siloxane, it was possible to separate 201 PCB congeners with only four unresolved pairs. The data compiled in this study for all 209 congeners will aid in the identification of selected individual components of these environmental pollutants. The use of this data also presents the opportunity for the improved quantification of the commercial PCB formulations.

表征谱图