2,2',3,3',4,4'-Hexabromo-1,1'-biphenyl | 82865-89-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2,2',3,3',4,4'-Hexabromo-1,1'-biphenyl
• 英文别名: 1,2,3-tribromo-4-(2,3,4-tribromophenyl)benzene
• CAS: 82865-89-2
• 化学式: C₁₂H₄Br₆
• 分子量: 627.6
• InChiKey: PTJQVJQAZSLKJO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.7
• 重原子数：
  18
• 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

多溴联苯（PBBs）可以通过口服、吸入和皮肤途径被吸收。由于它们的亲脂性，尤其是高溴代的多溴联苯，倾向于在富含脂质的组织中积累，如肝脏、脂肪、皮肤和母乳。某些多溴联苯化合物通过由苯巴比妥诱导的细胞色素P-450类型的微粒体单加氧酶系统进行代谢。代谢速率可能取决于溴取代模式。低溴含量的多溴联苯同系物转化为主要在尿液中排出的羟基衍生物。高溴代同系物要么被保留，要么在粪便中不变排出。(L628)

PBBs can be absorbed via oral, inhalation, and dermal routes. Due to their lipophilic nature, PBBs, especially the highly brominated congeners, tend to accumulate in lipid-rich tissues such as the liver, adipose, skin, and breast milk. Certain PBB compounds are metabolized by the microsomal monooxygenase system catalyzed by cytochrome P-450 of the type induced by phenobarbital. The rate of metabolism may depends on the bromine substitution pattern. PBB congeners of low bromine content are transformed into hydroxylated derivatives that are predominately eliminated in the urine. Highly brominated congeners are either retained or excreted unchanged in the feces. (L628)

来源:Toxin and Toxin Target Database (T3DB)

毒理性

• 毒性总结

多氯联苯（PBBs）的毒性机制因具体同系物而异。主要的相互作用被认为是涉及芳基烃受体（AhR）。PBBs与AhR结合并激活它，进而启动一系列基因的转录上调，影响生化途径和内分泌途径、细胞周期调节、形态发生、氧化应激反应以及各种其他过程。这导致PBBs特有的多种毒性反应。一些已知的诱导基因包括细胞色素P-450依赖性单加氧酶CYP1A1和CYP1A2。

The exact mechanism of toxicty of PBBs varies depending on the specific congener. The predominant interaction is believed to involve the aryl hydrocarbon receptor (AhR). PBBs bind to and activate the AhR, which in turn initiates the transcriptional upregulation of a number of genes, affecting biochemical and endocrine pathways, cell cycle regulation, morphogenesis, oxidative stress response, and various other processes. This results in the numerous toxic responses characteristic of PBBs. Some of the known induced genes include the cytochrome P-450-dependent monooxygenases CYP1A1 and CYP1A2. (L628)

来源:Toxin and Toxin Target Database (T3DB)

毒理性

• 致癌物分类

2A，可能对人类致癌。（L135）

2A, probably carcinogenic to humans. (L135)

来源:Toxin and Toxin Target Database (T3DB)

毒理性

• 健康影响

PBB暴露可能会导致体重减轻、皮肤问题（如痤疮）、神经和免疫系统的影响，以及对肝脏、肾脏和甲状腺的影响。

PBB exposure may cause weight loss, skin disorders (such as acne), nervous and immune systems effects, and effects on the liver, kidneys, and thyroid gland. (L628)

来源:Toxin and Toxin Target Database (T3DB)

毒理性

• 暴露途径

口服（L628）；吸入（L628）；皮肤给药（L628）

Oral (L628) ; inhalation (L628) ; dermal (L628)

来源:Toxin and Toxin Target Database (T3DB)

毒理性

• 症状

PBB暴露的症状可能包括恶心、腹痛、食欲不振、关节痛、疲劳和虚弱。

Symptoms of PBB exposure may include nausea, abdominal pain, loss of appetite, joint pain, fatigue, and weakness. (L629)

来源:Toxin and Toxin Target Database (T3DB)

文献信息

• Zinc borate, and production method and use thereof
  申请人：——

  公开号：US20030030042A1

  公开（公告）日：2003-02-13

  A zinc borate having a particular crystallite size and containing very little sodium components and a method of preparing the same. The zinc borate has a particular chemical composition, has a crystallite size of not smaller than 40 nm as found from diffraction peaks of indexes of planes of (020), (101) and (200) in the X-ray diffraction image (Cu-k&agr;) and contains sodium components in amounts of not larger than 100 ppm as measured by the atomic absorptiometric method.

  一种具有特定晶粒尺寸且含有极少钠成分的锌硼酸盐及其制备方法。该锌硼酸盐具有特定的化学组成，其晶粒尺寸不小于40纳米，可以从X射线衍射图像（Cu-kα）的（020）、（101）和（200）平面的衍射峰中发现，并且钠成分的含量不超过100 ppm，由原子吸收光谱法测量。
• Insulating material containing cycloolefin polymer
  申请人：——

  公开号：US20040157039A1

  公开（公告）日：2004-08-12

  An insulating material comprising a cycloolefin polymer, specifically, an interlayer insulating material for a high-density assembly board having interlayer-connecting via holes at most 200 &mgr;m in diameter, comprising a cycloolefin polymer containing at least 50 mol % of a repeating unit derived from a cycloolefin monomer; a dry film formed from a curable resin composition comprising a polymer having a number average molecular weight within a range of 1,000 to 1,000,000 as measured by gel permeation chromatography, and a hardener; and a resin-attached metal foil obtained by forming a film of a cycloolefin polymer on one side of a metal foil. Laminates, multi-layer laminates and build-up multi-layer laminates making use of these materials, and production processes thereof.

  一种绝缘材料，包括环氧烷基聚合物，具体地说，这是一种用于高密度组装板的层间绝缘材料，其间层连接的经孔直径最多为200微米，包括至少50摩尔％来自环氧烷基单体的重复单元的环氧烷基聚合物; 由可固化树脂组成的可干膜，其聚合物的数量平均分子量在1,000至1,000,000之间（通过凝胶渗透色谱法测量），以及硬化剂; 以及通过在金属箔的一侧形成环氧烷基聚合物膜而获得的树脂附着金属箔。利用这些材料制成的层压板，多层层压板和堆叠多层层压板以及其生产工艺。
• Phototropic photosensitive compositions containing a fluoran colorformer
  申请人：Dynachem Corporation

  公开号：EP0005380A2

  公开（公告）日：1979-11-14

  Compositions containing a polymerizable, curable or crosslinkable component, a photoinitiator, a fluoran colorformer and a latent activator that releases or promotes the release of a Lewis acid, will become insoluble and change color under the influence of actinic radiation. These compositions are particularly useful to make dry film photoresists, which are widely used in the electronics industry to manufacture printed circuits.

  含有可聚合、可固化或可交联成分、光引发剂、荧光显色剂和可释放或促进释放路易斯酸的潜在活化剂的组合物，在光辐射的影响下会变得不溶解并改变颜色。这些成分特别适用于制造干膜光阻，干膜光阻在电子工业中广泛用于制造印刷电路。
• Flammwidrige Formmassen auf Basis von Polyethylenterephthalat, Verfahren zu ihrer Herstellung und ihre Verwendung zur Herstellung von Formkörpern
  申请人：BAYER AG

  公开号：EP0030618A1

  公开（公告）日：1981-06-24

  Formmassen auf Basis von Polyethylenterephthalat, Flammschutzmittel und eines bestimmten Pfropfpolymerisats zeigen eine verminderte Tropfneigung im Brandfall.

  以聚对苯二甲酸乙二醇酯、阻燃剂和某种接枝聚合物为基础的模塑化合物在起火时的滴落趋势有所减弱。
• FIRE RETARDANT ORGANIC HIGH MOLECULAR COMPOSITION
  申请人：ACOME, SOCIETE COOPERATIVE DE TRAVAILLEURS

  公开号：EP0042440A1

  公开（公告）日：1981-12-30

  An organic high molecular composition having improved fire retardance, which is prepared by compounding a fire retardant composition comprising (a) organic high molecular material, (b) organic fire retardant, and (c) incombustible, polar, inorganic powder, with (d) a multi-functional compound and (e) an organic compound represented by the following formula [wherein Z represents an oxygen atom or a sulfur atom, A represents a divalent hydrocarbyl group containing 2 to 20 carbon atoms, optionally having a substituent, and forming a ring together with the adjacent two carbon atoms and B, and B represents an oxygen atom or an imino group represented by -NY- (wherein Y represents a hydrogen atom, a halogen atom or an organic group containing 30 or less carbon atoms)] or the hydrolyzate thereof.

  一种具有更佳阻燃性的有机高分子组合物，其制备方法是将包含(a)有机高分子材料、(b)有机阻燃剂和(c)不可燃极性无机粉末的阻燃组合物与(d)多功能化合物和(e)由下式表示的有机化合物复合在一起 [其中 Z 代表氧原子或硫原子，A 代表含有 2 至 20 个碳原子的二价烃基，可选择具有一 个取代基，并与相邻的两个碳原子和 B 一起形成一个环，B 代表氧原子或由 -NY- 代表的亚氨基（其中 Y 代表氢原子、卤素原子或含有 30 个或更少碳原子的有机基团））]或其水解物。