4,5-二羟基间苯二甲酸 | 4707-77-1

• 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: 4,5-二羟基间苯二甲酸
• 英文名称: 4,5-dihydroxy-1,3-benzenedisulfonic acid
• 英文别名: 4,5-dihydroxyisophthalic acid；tiron；4,5-dihydroxy-isophthalic acid；4,5-Dihydroxy-isophthalsaeure；4,5-Dihydroxyisophthalsaeure；4,5-dihydroxybenzene-1,3-dicarboxylic acid
• CAS: 4707-77-1
• 化学式: C₈H₆O₆
• 分子量: 198.132
• InChiKey: FBOCZYIJDQZQFE-UHFFFAOYSA-N

物化性质

• 熔点：
  291 °C(Solv: water (7732-18-5))
• 沸点：
  524.1±50.0 °C(Predicted)
• 密度：
  1.779±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  115
• 氢给体数：
  4
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  甲醇 、 4,5-二羟基间苯二甲酸 在 硫酸 作用下， 生成 4,5-dihydroxy-isophthalic acid dimethyl ester 、 4,5-dihydroxy-isophthalic acid-1-methyl ester
  参考文献：
  名称：

  Freudenberg; Klink, Chemische Berichte, 1940, vol. 73, p. 1369,1372

  摘要：

  DOI：
• 作为产物：
  描述：

  4-羟基间苯二甲酸 在 甲醇 、 氢氧化钾 、 硫酸 、 水 、 溴 、 铜 作用下， 生成 4,5-二羟基间苯二甲酸
  参考文献：
  名称：

  Hunt et al., Journal of the Chemical Society, 1956, p. 3099,3102

  摘要：

  DOI：

文献信息

• The structure of melanins and melanogenesis—V
  作者：M. Piattelli、E. Fattorusso、R.A. Nicolaus、S. Magno

  DOI：10.1016/s0040-4020(01)96941-8

  日期：——

  The black pigment from Ustilago mydis spores has been studied. Analytical data and degradation experiments show it to be related to catecholmelanin.

  已经研究了乌斯梯亚果（Ustilago mydis）孢子中的黑色颜料。分析数据和降解实验表明它与儿茶酚黑素有关。
• INCLUSION COMPLEX CONTAINING EPOXY RESIN COMPOSITION FOR SEMICONDUCTOR ENCAPSULATION
  申请人：Ono Kazuo

  公开号：US20100179250A1

  公开（公告）日：2010-07-15

  It is to improve the storage stability of a sealant, to retain the flowability of the sealant when sealing, and to achieve an effective curing rate of the sealant by heating to be applicable as a sealant for delicate semiconductors. It is an epoxy resin composition for sealing a semiconductor, comprising the following component (A) and component (B). (A) an epoxy resin, (B) a clathrate complex comprising (b1) an aromatic carboxylic acid compound, and (b2) at least one imidazole compound represented by formula (II) (wherein R 2 represents a hydrogen atom, etc.; R 3 to R 5 represent a hydrogen atom, etc.).

  这是为了改善密封剂的储存稳定性，保持密封时密封剂的流动性，并通过加热实现密封剂的有效固化速率，以适用于精细半导体的密封剂。它是一种用于密封半导体的环氧树脂组合物，包括以下组分（A）和组分（B）。（A）环氧树脂，（B）包括（b1）芳香羧酸化合物和（b2）至少一种由式（II）表示的咪唑化合物的笼形复合物（其中R2表示氢原子等；R3至R5表示氢原子等）。
• Method of preventing polymer-scale formation
  申请人：Shin-Etsu Chemical Co., Ltd.

  公开号：EP0320227A2

  公开（公告）日：1989-06-14

  A method of preventing polymer scales from sticking in a polymerization vessel during the polymerization of a monomer having an ethylenically double bond, wherein said polymerization is carried out in a polymerization vessel of which the inner wall and other parts with which said monomer comes into contact during polymerization are previously first coated with (a) a coating solution comprising a cationic dye and the resulting coating is then coated with (b) a coating solution comprising at least one component selected from the group consisting of anionic polymeric compounds, amphoteric polymeric compounds and hydroxyl group-containing organic compounds. Polymer scale formation can be effectively prevented.

  一种在具有乙烯双键的单体聚合过程中防止聚合物鳞片粘附在聚合容器中的方法，其中所述聚合在聚合容器中进行，聚合容器的内壁和在聚合过程中与所述单体接触的其他部分之前先涂有(a)由阳离子染料组成的涂层溶液，然后在所得涂层上涂有(b)由至少一种从阴离子聚合物化合物、两性聚合物化合物和含羟基有机化合物组成的组中选出的组分组成的涂层溶液。可有效防止聚合物结垢。
• COMPOSITION FOR FORMATION OF CURED EPOXY RESIN, AND CURED PRODUCTS THEREOF
  申请人：Nippon Soda Co., Ltd.

  公开号：EP2489689A1

  公开（公告）日：2012-08-22

  An object of the present invention is to provide a composition for the formation of a cured epoxy resin, wherein the composition can suppress a curing reaction at a low temperature to thereby enhance one-pack stability, and can also be subjected to a heating treatment to thereby effectively cure a resin. The present invention provides a composition for the formation of a cured epoxy resin, the composition comprising the following components (A), (B) and (C): (A) an epoxy resin; (B) a clathrate compound of a carboxylic acid derivative represented by formula (I):         R(COOH)n     (I); and an imidazole compound represented by formula (II); and (C) a tetrakisphenol type compound represented by formula (III).

  本发明的目的是提供一种用于形成固化环氧树脂的组合物，其中该组合物可以在低温下抑制固化反应，从而提高单包稳定性，还可以进行加热处理，从而有效地固化树脂。本发明提供了一种用于形成固化环氧树脂的组合物，该组合物包括以下组分（A）、（B）和（C）： (A) 环氧树脂； (B) 由式(I)代表的羧酸衍生物的凝块化合物： R(COOH)n (I)； 和式 (II) 所代表的咪唑化合物；以及 (C) 式 (III) 所代表的四联酚型化合物。
• CURABLE POWDER COATING COMPOSITION, AND CURED PRODUCT OF SAME
  申请人：Nippon Soda Co., Ltd.

  公开号：EP2573148A1

  公开（公告）日：2013-03-27

  Disclosed is an epoxy or epoxy-polyester curable powder coating composition which can form a favorable cured coating film excellent in adhesion and solvent resistance and is excellent in storage stability. The curable powder coating composition of the present invention contains the following component (A) and component (B): (A) an epoxy resin or an epoxy-polyester hybrid resin; and (B) a clathrate complex which contains (b1) at least one selected from the group consisting of a carboxylic acid compound and a tetrakisphenol compound represented by the following formula (I), and (b2) at least one selected from compounds represented by formula (II). The carboxylic acid compound preferably includes an aromatic carboxylic acid.

  本发明公开了一种环氧或环氧-聚酯可固化粉末涂料组合物，该组合物可形成附着力和耐溶剂性优异的固化涂膜，并具有出色的贮存稳定性。本发明的可固化粉末涂料组合物包含以下组分（A）和组分（B）：（A）环氧树脂或环氧-聚酯混合树脂；和（B）凝胶络合物，其中包含（b1）至少一种选自下式（I）所代表的羧酸化合物和四双酚化合物，以及（b2）至少一种选自下式（II）所代表的化合物。羧酸化合物最好包括芳香族羧酸。