Decanoyl octadec-9-enoate

• 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: Decanoyl octadec-9-enoate
• 英文别名: decanoyl octadec-9-enoate
• 化学式: C₂₈H₅₂O₃
• 分子量: 436.7
• InChiKey: XJAMRIBMYGRRLZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  11.5
• 重原子数：
  31
• 可旋转键数：
  25
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

文献信息

• Writing board ink composition
  申请人：ORIENT CHEMICAL INDUSTRIES, LTD.

  公开号：EP0563901A1

  公开（公告）日：1993-10-06

  A writing board ink composition containing a medium of, or based on, a lower alcohol solvent, wherein a diketopyrrolopyrrole pigment represented by the following formula [I] having a median Stokes diameter of not more than 0.2 µm, an alcohol-soluble polymer, a scraping agent and a surfactant are contained in the medium. wherein R¹ and R² independently represent an unsubstituted or non-water-solubilizing substituent substituted phenyl group or naphthyl group; R³ and R⁴ independently represent hydrogen or a non-water-solubilizing substituent. The writing board ink composition of the present invention remains stable for a long time while in pens even when the resin content is such that unclear writing and scrapability reduction can be avoided, since the pigment of ultrafine particle size is fast to lower alcohol solvents.

  一种书写板墨水组合物，含有低级醇类溶剂或以低级醇类溶剂为基础的介质，其中包含由下式[I]表示的中值斯托克斯直径不超过 0.2 微米的二酮吡咯啉颜料、醇溶性聚合物、刮除剂和表面活性剂。 其中 R¹ 和 R² 独立地代表未取代的或非水溶性取代基取代的苯基或萘基；R³ 和 R⁴ 独立地代表氢或非水溶性取代基。 本发明的书写板墨水组合物即使在树脂含量较高的情况下也能保持长期稳定，从而避免出现书写不清晰和可刮性降低的问题，因为超细粒径的颜料对低醇溶剂的溶解速度快。
• Aqueous black ink composition for writing board
  申请人：ORIENT CHEMICAL INDUSTRIES, LTD.

  公开号：EP0778325A2

  公开（公告）日：1997-06-11

  The present invention provides an aqueous black ink composition for a writing board which hardly causes thickening, coagulation of the pigment, decreasing of writing density due to sedimentation, clogging in a penpoint, and break in writing. The aqueous black ink composition comprises water, the oxidized carbon black obtained by oxidizing carbon black using hypohalogenous acid and/or salt thereof, a film forming agent, and a release agent.

  本发明提供了一种用于书写板的水性黑色墨水组合物，该组合物几乎不会导致增稠、颜料凝固、沉淀导致书写密度降低、笔尖堵塞和断笔。该水性黑色墨水组合物由水、通过使用次卤酸和/或其盐氧化炭黑得到的氧化炭黑、成膜剂和脱模剂组成。
• Mutant-type lipases and applications thereof
  申请人：——

  公开号：US20030109019A1

  公开（公告）日：2003-06-12

  The present invention provides mutant-type lipases which demonstrate superior lipolytic and esterific activities. The mutant-type lipases are characterized by an amino acid alteration at the residue immediately followed either the serine residue or the histidine residue or both residues of the Ser-His-Asp catalytic triad. The Ser-His-Asp catalytic triad is known to be the three residues, although occur far apart in the amino acid sequence of a lipase, that contribute to the hydrolytic activity in the active site of the lipase. The amino acid residue that follows the serine residue of the Ser-His-Asp catalytic triad is alanine. The amino acid residue that follows the histidine residue of the Ser-His-Asp catalytic triad is isoleucine. The wild-type lipase is preferably originated from Staphylococcus, particularly Staphylococcus epidermindis . The present invention also relates to a method for preparing the mutant-type lipases by site-directed mutagenesis using PCR and a method for utilizing the mutant-type lipase to catalyze synthesis of flavor esters to be used in food industry.

  本发明提供了突变型脂肪酶，它们具有优异的脂肪分解和酯化活性。突变型脂肪酶的特点是紧随丝氨酸残基或组氨酸残基之后的残基或丝氨酸-组氨酸-天冬氨酸催化三元组的两个残基的氨基酸发生了改变。众所周知，丝氨酸-组氨酸-天冬氨酸催化三元组是脂肪酶氨基酸序列中的三个残基，虽然这三个残基之间相距甚远，但它们在脂肪酶的活性位点起着水解作用。Ser-His-Asp 催化三元组中丝氨酸残基之后的氨基酸残基是丙氨酸。Ser-His-Asp 催化三位体中组氨酸残基之后的氨基酸残基是异亮氨酸。野生型脂肪酶最好来自葡萄球菌，特别是 表皮葡萄球菌 .本发明还涉及一种利用 PCR 定点诱变制备突变型脂肪酶的方法，以及一种利用突变型脂肪酶催化合成食品工业所用香料酯的方法。
• US5053289A
  申请人：——

  公开号：US5053289A

  公开（公告）日：1991-10-01
• US5112679A
  申请人：——

  公开号：US5112679A

  公开（公告）日：1992-05-12