Calcium 2,3-dihydroxybutanedioate--2,3-dihydroxybutanedioic acid (1/1/1) | 5743-33-9

• 物质功能分类: 有机原料 - 羧酸类化合物及衍生物
• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: Calcium 2,3-dihydroxybutanedioate--2,3-dihydroxybutanedioic acid (1/1/1)
• 英文别名: calcium;2,3-dihydroxybutanedioate;2,3-dihydroxybutanedioic acid
• CAS: 5743-33-9
• 化学式: C8H10CaO12
• 分子量: 338.24
• InChiKey: GLSXJWMRFIWYNO-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
  -7.3
• 重原子数：
  21
• 可旋转键数：
  8
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  236
• 氢给体数：
  6
• 氢受体数：
  12

文献信息

• IMMUNOPOTENTIATING COMPOSITIONS
  申请人：OTSUKA PHARMACEUTICAL CO., LTD.

  公开号：EP1219630A1

  公开（公告）日：2002-07-03

  The invention provides an immunopotentiating composition and to a composition accelerating the production of interferon-γ, both comprising lactosuclose as an active ingredient. In particular, the invention provides such compositions in the form of a foodstuff. Oral administration or ingestion of the compositions enhances biophylaxis mechanism (immunological function) in the digestive tract, thus achieving significant treating and preventing effects on intestinal infections and like diseases.

  本发明提供了一种免疫增强组合物和一种加速产生干扰素-γ的组合物，两者都包含乳糖作为活性成分。特别是，本发明提供了食品形式的此类组合物。口服或摄入这些组合物可增强消化道的生物预防机制（免疫功能），从而对肠道感染和类似疾病产生显著的治疗和预防效果。
• ALDEHYDE INHIBITOR COMPOSITION AND POLYACETAL RESIN COMPOSITION
  申请人：Polyplastics Co., Ltd.

  公开号：EP1683838A1

  公开（公告）日：2006-07-26

  An aldehyde-inhibiting composition inhibiting an aldehyde from an aldehyde-generating source comprises a carboxylic acid hydrazide and a metal salt of a hydroxy polycarboxylic acid (e.g., a salt of citric acid, malic acid, or tartaric acid with an alkaline earth metal) in a proportion of 0.01 to 100 parts by weight relative to 1 part by weight of the carboxylic acidhydrazide. Moreover, a polyacetal resin composition may comprise a polyacetal resin and the aldehyde-inhibiting composition in a proportion of 0.001 to 20 parts by weight of the aldehyde-inhibiting composition relative to 100 parts by weight of the polyacetal resin. To the resin composition, may be added an antioxidant, a heat stabilizer, a processing stabilizer, a weather (light)-resistant stabilizer, an impact resistance improver, a gloss control agent, a sliding improver, a coloring agent, a filler, and others. A small amount of the aldehyde-inhibiting composition efficiently inhibits the aldehyde generation from the polyacetal resin without discoloring the resin.

  一种抑制醛生成源的醛的抑醛组合物包括羧酸酰肼和羟基多羧酸的金属盐（如柠檬酸、苹果酸或酒石酸与碱土金属的盐），相对于 1 份羧酸酰肼的重量比例为 0.01 至 100 份。此外，聚缩醛树脂组合物可包括聚缩醛树脂和醛抑制组合物，其中醛抑制组合物的比例为 0.001 至 20（按聚缩醛树脂的重量计），相对于 100（按聚缩醛树脂的重量计）。在树脂组合物中可添加抗氧化剂、热稳定剂、加工稳定剂、耐候（光）稳定剂、抗冲击性改进剂、光泽控制剂、滑动改进剂、着色剂、填料等。少量的醛抑制组合物就能有效抑制聚缩醛树脂中醛的生成，而不会使树脂变色。
• POLYBUTYLENE TEREPHTHALATE RESIN COMPOSITION AND MOLDED ARTICLE
  申请人：Wintech Polymer Ltd.

  公开号：EP2832794A1

  公开（公告）日：2015-02-04

  Provided is a technology of making it difficult for VOCs, including VOCs other than THF, to emit from a molded article formed by molding a polybutylene terephthalate resin composition. A polybutylene terephthalate resin composition is used which comprises a polybutylene terephthalate resin produced by direct esterification, and an alkali compound, in which an amount of a VOC emitted from a molded article formed by molding the polybutylene terephthalate resin composition is 50 µgC/g or less when measured by a VOC measuring method defined in the German Association of the Automotive Industry VDA 277.

  本发明提供了一种使挥发性有机化合物（包括四氢呋喃以外的挥发性有机化合物）难以从通过模塑聚对苯二甲酸丁二醇酯树脂组合物而形成的模塑制品中释放出来的技术。 所使用的聚对苯二甲酸丁二醇酯树脂组合物由直接酯化法生产的聚对苯二甲酸丁二醇酯树脂和碱化合物组成，其中通过模塑聚对苯二甲酸丁二醇酯树脂组合物而形成的模塑品中排放的挥发性有机化合物的量在使用德国汽车工业协会 VDA 277 中规定的挥发性有机化合物测量方法测量时为 50 µgC/g 或以下。
• METHOD FOR MANUFACTURING POLYBUTYLENE TEREPHTHALATE RESIN COMPOSITION AND METHOD FOR MANUFACTURING POLYBUTYLENE TEREPHTHALATE RESIN MOLDED ARTICLE
  申请人：Wintech Polymer Ltd.

  公开号：EP3327085A1

  公开（公告）日：2018-05-30

  Provided is a technique for reducing the release of VOCs, said VOCs including VOCs other than THF, from a polybutylene terephthalate resin molded article containing a polybutylene terephthalate resin. The present invention relates to: a method for manufacturing a polybutylene terephthalate resin composition that contains a polybutylene terephthalate resin produced by a direct esterification method and an alkali compound, said method comprising a step for melt-kneading a master batch containing a polyalkylene terephthalate resin and the alkali compound with the polybutylene terephthalate resin; and a method for manufacturing a polybutylene terephthalate resin molded article that contains a polybutylene terephthalate resin produced by a direct esterification method and an alkali compound, said method comprising a step for dry-blending the master batch with the polybutylene terephthalate resin and then molding the obtained blend.

  本发明提供了一种减少聚对苯二甲酸丁二醇酯树脂模塑制品释放挥发性有机化合物的技术，所述挥发性有机化合物包括除四氢呋喃以外的挥发性有机化合物。本发明涉及一种聚对苯二甲酸丁二醇酯树脂组合物的制造方法，该组合物含有通过直接酯化法生产的聚对苯二甲酸丁二醇酯树脂和碱化合物，所述方法包括将含有聚对苯二甲酸丁二醇酯树脂和碱化合物的母料与聚对苯二甲酸丁二醇酯树脂熔融捏合的步骤；一种制造聚对苯二甲酸丁二醇酯树脂模塑品的方法，该模塑品含有通过直接酯化法生产的聚对苯二甲酸丁二醇酯树脂和碱化合物，所述方法包括将母料与聚对苯二甲酸丁二醇酯树脂干混，然后将获得的混合物模塑的步骤。
• ABRASIVE GRAIN AND GRINDING WHEEL
  申请人：Showa Denko K.K.

  公开号：EP3848340A1

  公开（公告）日：2021-07-14

  Problem to be Solved To provide an alumina sintered body, abrasive grains, and a grinding wheel having high hardness and excellent wear resistance. Solution Provided is an alumina sintered body including an inner layer in which alumina crystal grains contained have an average aspect ratio of 1.0 to 2.0 and an outer layer which covers at least a part of the inner layer from outside and in which alumina crystal grains contained have an average aspect ratio of more than 2.0, the alumina sintered body being free from silicon except unavoidable impurities.

  要解决的问题 提供一种具有高硬度和优异耐磨性的氧化铝烧结体、磨粒和砂轮。 解决方案 本发明提供了一种氧化铝烧结体，包括内层和外层，内层所含氧化铝晶粒的平均长宽比为 1.0 至 2.0，外层从外部覆盖内层的至少一部分，外层所含氧化铝晶粒的平均长宽比大于 2.0，氧化铝烧结体不含硅，但不可避免的杂质除外。