3-(Carboxymethylamino)-3-[1-(carboxymethylamino)ethyl]pentanedioic acid

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 3-(Carboxymethylamino)-3-[1-(carboxymethylamino)ethyl]pentanedioic acid
• 化学式: C₁₁H₁₈N₂O₈
• 分子量: 306.27
• InChiKey: PUYNWZJKBSMJTA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -6.7
• 重原子数：
  21
• 可旋转键数：
  11
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.64
• 拓扑面积：
  173
• 氢给体数：
  6
• 氢受体数：
  10

文献信息

• Silver halide photographic elements containing 2-equivalent 5-pyrazolone magenta couplers
  申请人：MINNESOTA MINING AND MANUFACTURING COMPANY

  公开号：EP0735417A1

  公开（公告）日：1996-10-02

  Silver halide photographic element comprising a support and at least one silver halide emulsion layer having associated a 2-equivalent 5-pyrazolone magenta coupler represented by the formula: wherein a represents an integer from 0 to 3, b represents an integer from 0 to 2, R1 and R2 are each individually hydrogen, alkyl, alkoxy, halogen, aryl, aryloxy, acylamino, sulfonamido, sulfamoyl, carbamoyl, arylsulfonyl, aryloxycarbonyl, alkoxycarbonyl, alkoxysulfonyl, aryloxysulfonyl, alkylureido, arylureido, nitro, cyano, hydroxyl or carboxy group, R3 is halogen atom, alkyl or aryl group, X is a direct link or a linking group, Ball is a ballasting group which renders a group to which is attached non-diffusible in photographic coatings, and the sum of the sigma values of R1, R3 and X-Ball is less than 1.3.

  卤化银感光元件，包括一个支撑体和至少一个卤化银乳剂层，该层上附有由式表示的 2-当量 5-吡唑酮品红耦合剂： 其中 a 代表 0 至 3 的整数、 b 代表 0 至 2 的整数、 R1 和 R2 分别是氢、烷基、烷氧基、卤素、芳基、芳氧基、酰氨基、磺酰胺基、氨基磺酰基、氨基甲酰基、芳基磺酰基、芳氧基羰基、烷氧基羰基、烷氧基磺酰基、芳氧基磺酰基、烷基脲基、芳基脲基、硝基、氰基、羟基或羧基、 R3 是卤素原子、烷基或芳基、 X 是直接连接或连接基团、 Ball 是压载基团，它使所连接的基团在感光涂层中不易扩散，以及 R1、R3 和 X-Ball 的西格玛值之和小于 1.3。
• Alkaline soluble mixture composed of cellulose derivatives
  申请人：FERRANIA S.p.A.

  公开号：EP1024401A2

  公开（公告）日：2000-08-02

  One object of the present invention is to provide a mixture composed of 1) a cellulose ether derivative esterified at least with a biprotic acid group derivative expressed by the formula HOOC-B-COOH (I), wherein B is a linear aliphatic group represented by (CH2)x with x a positive integer from 1 to 5 or is a 5-member or 6-member cycloaliphatic group and 2) a cellulose or cellulose derivative esterified at least with a phthalic acid derivative represented by the following formula (II). wherein R1 is an alkyl group and y is a positive integer from 0 to 3. Said mixture shows an enhanced stability against hydrolysis when subjected to conditioning at high relative humidity and temperature. The composition may be useful in order to get antihalation layer on photographic films as well as enteric coating of pharmaceutical dosage and for controlled-release applications such as for cleaning formulation.

  本发明的一个目的是提供一种混合物，其组成包括：1) 至少与由式 HOOC-B-COOH (I) 表示的双丙酸基团衍生物酯化的纤维素醚衍生物，其中 B 是由 (CH2)x 表示的线性脂肪族基团，x 为 1 至 5 的正整数，或者是 5 元或 6 元环脂肪族基团；2) 至少与由下式 (II) 表示的邻苯二甲酸衍生物酯化的纤维素或纤维素衍生物。 其中 R1 为烷基，y 为 0 至 3 的正整数。 所述混合物在高相对湿度和温度条件下具有更强的抗水解稳定性。 该组合物可用于在照相胶片上形成防晕染层，也可用于药剂的肠溶包衣和控释应用，如清洁配方。
• Photographic dispersions for yellow filter dyes
  申请人：FERRANIA S.p.A.

  公开号：EP1308775A1

  公开（公告）日：2003-05-07

  The present invention refers to a process for preparing a dispersion which comprises codispersing in an aqueous medium a sucrose derivative represented by the following general formula (1), wherein substituents X1 to X8, being the same or different, are represented by a hydrogen atom, an alkyl group or an acyl group, with the proviso that at least four of the X1 to X8 substituents are different from hydrogen and that the total sum of the carbon atoms of X1 to X8 substituents is at least sixteen; and a photographic compound represented by the following general formula (2), wherein R and R1 each independently represent a hydrogen atom, an alkyl group, an alkylene group, a heterocyclic group or an aryl group; R2, R3 and R4 each independently represent a hydrogen atom, an alkyl group, an aryl group and R3 and R4 may be combined to form a 6-membered ring. The present invention also refers to a photographic dispersion comprising a sucrose derivative represented by previous general formula (1) and a photographic compound represented by previous general formula (2) dispersed in an aqueous medium and to a photographic element comprising a film support base having coated on one side thereof at least one hydrophilic colloid emulsion layer comprising said photographic dispersion. The process of the present invention allows obtain photographic dispersions to display a narrow drop size distribution curve even when stored for a long period of time (30 days) in cold room.

  本发明涉及一种制备分散体的工艺，该工艺包括在水介质中分散由以下通式(1)表示的蔗糖衍生物，其中取代基X1至X8相同或不同，均由氢原子、烷基或酰基表示，但X1至X8取代基中至少有四个不同于氢，且X1至X8取代基的碳原子总数至少为十六个；以及由以下通式（2）代表的光化合物，其中 R 和 R1 各自独立地代表氢原子、烷基、亚烷基、杂环基团或芳基；R2、R3 和 R4 各自独立地代表氢原子、烷基、芳基，且 R3 和 R4 可组合成一个 6 元环。 本发明还涉及一种感光分散体，该分散体由分散在水性介质中的前通式（1）所代表的蔗糖衍生物和前通式（2）所代表的感光化合物组成；还涉及一种感光元件，该元件包括在其一侧涂有至少一层包含所述感光分散体的亲水胶体乳剂层的胶片支持基。 通过本发明的工艺，即使在冷藏室中储存较长时间（30 天），所获得的感光分散体也能显示出较小的液滴分布曲线。
• Cosmetic and pharmaceutical compositions and their use
  申请人：——

  公开号：US20040052826A1

  公开（公告）日：2004-03-18

  Pharmaceutical and cosmetical compositions comprising a chelating and a sequestering agent, and optionally containing further ingredients. Use of such compositions to make water more compatible with the skin. Use of such compositions to prevent or treat skin conditions such as eczema, irritation and skin dryness.

  由螯合剂和螯合剂组成的药物和化妆品组合物，可选择含有其他成分。使用此类复合物可使水与皮肤更相容。使用此类组合物预防或治疗湿疹、刺激和皮肤干燥等皮肤疾病。
• Metal brightener and surface cleaner
  申请人：Chernin Vladimir

  公开号：US20050256025A1

  公开（公告）日：2005-11-17

  The present invention provides a metal brightener and surface cleaner, which provides significant etching of aluminum and other metals, without detrimentally affecting other surfaces such as painted surfaces, glass, rubber and plastic. The inventive composition is especially suited for aluminum brightening for large vehicles, and may be utilized in an alkaline step of a multi-step vehicle wash. One of the exemplary compositions includes an alkali metal hydroxide; a polycarboxylic acid; an alkali metal salt of an organic acid; a first, amphoteric surfactant; a second, betain surfactant; and a third, nonionic surfactant.

  本发明提供了一种金属增亮剂和表面清洁剂，可对铝和其他金属进行显著的蚀刻，而不会对其他表面（如油漆表面、玻璃、橡胶和塑料）造成不利影响。本发明的组合物特别适用于大型车辆的铝抛光，可用于多步骤车辆清洗的碱性步骤。其中一种示范性组合物包括碱金属氢氧化物、聚羧酸、有机酸的碱金属盐、第一种两性表面活性剂、第二种甜菜碱表面活性剂和第三种非离子表面活性剂。