Sodium pyrocatecholate | 20244-21-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: Sodium pyrocatecholate
• CAS: 20244-21-7
• 化学式: C6H6NaO2
• 分子量: 133.1
• InChiKey: OQMUXQPCUBYTEB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.72
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  40.5
• 氢给体数：
  2
• 氢受体数：
  2

文献信息

• Dye-forming coupler and silver halide color photographic light-sensitive material
  申请人：Takeuchi Kiyoshi

  公开号：US20050079456A1

  公开（公告）日：2005-04-14

  A dye-forming coupler and compound of formula (I): wherein Q represents a residue that forms, together with —N—C═N—, a nitrogen-containing 6-membered ring; R A represents an aryl, heterocyclic, or —(R 1 ) r —(R 4 ) m group; X represents an aryl group; Y represents a hydrogen atom, or a group capable of being split-off upon a coupling reaction with an oxidized product of a developing agent: wherein, when R A represents an —(R 1 ) r —(R 4 ) m group, R 1 represents a methylene group, a methine group, or a carbon atom; r is 1 to 30; R 4 represents a substituent except for a hydrogen atom; m is 1 to 30; and the —(R 1 ) r —(R 4 ) m group does not represent a straight-chain alkyl group.

  一种染料形成偶联剂和化合物的公式（I）：其中Q代表与—N—C═N—一起形成含氮6元环的残基；RA代表芳基，杂环或—（R1）r—（R4）m基团；X代表芳基基团；Y代表氢原子或能够在偶联反应中与氧化的显影剂产生分裂的基团：其中，当RA代表—（R1）r—（R4）m基团时，R1代表亚甲基基团，亚胺基团或碳原子；r为1到30；R4代表除氢原子外的取代基；m为1到30；且—（R1）r—（R4）m基团不代表直链烷基。
• DYE-FORMING COUPLER, SILVER HALIDE PHOTOGRAPHIC LIGHT-SENSITIVE MATERIAL, AND AZOMETHINE DYE COMPOUND
  申请人：UEHIRA Shigeki

  公开号：US20080214810A1

  公开（公告）日：2008-09-04

  A dye-forming coupler of formula (I), a silver halide photographic light-sensitive material containing the coupler, and an azomethine dye compound derived from the coupler: wherein Q is a residue that forms, together with the —N—C═N— moiety, a nitrogen-containing 6-membered ring; R A is a certain alkyl group having at least 7 carbon atoms, or -L-R 1 ; X is an aryl group; Y is a hydrogen atom, or a group capable of being split-off upon a coupling reaction; wherein, when R A is -L-R 1 , L is a divalent linking group, and R 1 is a substituent; and -L-R 1 does not represent an alkyl, alkenyl, alkynyl, or aryl group, and -L-R 1 does not represent a heterocyclic group that bonds, with a carbon atom therein, to the nitrogen atom of the nitrogen-containing 6-membered ring formed by Q and the —N—C═N— moiety.

  公式（I）的染料形成偶合剂，含有该偶合剂的银卤化物感光材料，以及从偶合剂衍生的偶氮甲基染料化合物：其中Q是一个残基，与—N—C═N—基团一起形成含氮的6元环；RA是至少有7个碳原子的特定烷基或-L-R1；X是芳基基团；Y是氢原子或能够在偶合反应中被分离的基团；当RA是-L-R1时，L是二价连接基团，R1是取代基；-L-R1不表示烷基，烯基，炔基或芳基基团，-L-R1不表示与氮含量的6元环与Q和—N—C═N—基团形成的氮原子之间结合的杂环基团。
• Polyvinyl alcohol based fibers
  申请人：KURARAY CO., LTD.

  公开号：EP1069216A1

  公开（公告）日：2001-01-17

  Provided are polyvinyl alcohol based fibers having good fatigue resistance, dipped cords comprising the polyvinyl alcohol based fibers and having good fatigue resistance, and a method for producing the dipped cords. The polyvinyl alcohol based fibers have tans at 90°C of at least 0.12 and have substantially one peak of tanδ within a temperature range of from 60 to 120°C, and the elongation at break of the fibers is at least 12 %.

  本发明提供了具有良好抗疲劳性的聚乙烯醇基纤维、由聚乙烯醇基纤维组成且具有良好抗疲劳性的浸渍帘线以及生产浸渍帘线的方法。聚乙烯醇基纤维在 90°C 时的 tan 值至少为 0.12，并且在 60 至 120°C 的温度范围内基本上有一个 tanδ 峰值，纤维的断裂伸长率至少为 12%。
• Lithographic printing plate system and method for manufacturing the plate system
  申请人：DIGITAL MIND S.R.L.

  公开号：US20040248029A1

  公开（公告）日：2004-12-09

  A lithographic printing plate system comprising a plate that is suitable for inkjet printing and a method for preparing the plate system comprising a support and a first composition that comprises at least one anionic compound and is spread onto the support; the lithographic support can be made for example of paper, electrograined-anodized aluminum, or flexible plastic polymer rendered hydrophilic beforehand by means of a specific surface treatment; an image that is faithful to the original is then reproduced on the lithographic plate with the aid of an inkjet printing system and of a second composition that contains at least one cationic compound, such as a diazo compound.

  一种平版印刷制版系统，包括适用于喷墨印刷的版材和制备该制版系统的方法，该制版系统包括支撑物和第一种组合物，第一种组合物包括至少一种阴离子化合物并涂布在支撑物上；平版印刷支撑物可以是纸张、电镀阳极氧化铝或柔性塑料聚合物等，事先通过特定的表面处理使其具有亲水性；然后借助喷墨打印系统和含有至少一种阳离子化合物（如重氮化合物）的第二种组合物，在平版印刷板上复制出忠实于原稿的图像。
• Process for producing monosilane
  申请人：MITSUBISHI KASEI CORPORATION

  公开号：EP0337322B1

  公开（公告）日：1993-07-21