Nucleic acid labeling compounds containing heterocyclic derivatives are disclosed. Methods for making such heterocyclic compounds are also disclosed. The labeling compounds are suitable for enzymatic attachment to a nucleic acid, either terminally or internally, to provide a mechanism of nucleic acid detection.
Fluorescent Detection of Carbon−Carbon Bond Formation
作者:Fujie Tanaka、Rajeswari Thayumanavan、Carlos F. Barbas
DOI:10.1021/ja034069t
日期:2003.7.1
fluorescence to enhance high-throughput catalyst screening and rapid characterization of catalysts on a small scale. Fluorogenic substrates composed of a fluorophore possessing an amino group are readily prepared as amides of alpha,beta-unsaturated carbonyl compounds and generally exhibit low fluorescence, while Michael or Diels-Alder reactions of these fluorogenic substrates provide products of significantly
我们开发了一种新的光谱系统,用于通过荧光检测碳-碳键的形成,以增强小规模催化剂的高通量筛选和快速表征。由具有氨基的荧光团组成的荧光底物很容易制备为 α、β-不饱和羰基化合物的酰胺,并且通常表现出低荧光,而这些荧光底物的 Michael 或 Diels-Alder 反应提供了显着增强荧光的产物。该产品的荧光比底物高约 20 至 100 倍。该测定系统通过筛选迈克尔反应的潜在催化剂和溶剂优化实验得到验证。具有氨基的荧光团与α、
REAGENTS FOR LABELLING NUCLEIC ACIDS AND USES THEREOF
申请人:Mouritzen Peter
公开号:US20090023594A1
公开(公告)日:2009-01-22
The present invention relates to labelling kits containing novel non-natural nucleotide monomers and to methods of making and using such compounds. The invention further relates to a method of detecting the presence of a nucleic acid, e.g., RNA, of interest in a sample, the method having the following steps: providing the sample; ligating a nucleic acid of interest with a labelling reagent according to the instant invention; providing a nucleic acid array having probes directed to the nucleic acid of interest; hybridizing the labelled nucleic acid fragments to said nucleic acid array; and determining the extent of hybridization to said probes to determine the presence of the nucleic acid of interest.
Nucleic acid labeling compounds containing heterocyclic derivatives are disclosed. The heterocyclic derivative containing compounds are synthesized by condensing a heterocyclic derivative with a cyclic group (e.g. a ribofuranose derivative). The labeling compounds are suitable for enzymatic attachment to a nucleic acid, either terminally or internally, to provide a mechanism of nucleic acid detection.
HIGH-PURITY SODIUM P-STYRENESULFONATE WITH EXCELLENT HUE, METHOD FOR PRODUCING THE SAME, POLY (SODIUM P-STYRENESULFONATE) WITH EXCELLENT HUE USING THE SAME, AND DISPERSANT AND SYNTHETIC STARCH FOR CLOTHING FINISHING USING THE POLY ( SODIUM P-STYRENESULFONATE)
申请人:TOSOH ORGANIC CHEMICAL CO., LTD.
公开号:US20150246876A1
公开(公告)日:2015-09-03
Provided are high purity sodium p-styrenesulfonate with an excellent hue which is useful as a reactive emulsifier or dispersant for producing a polymer emulsion, or synthetic starch for clothing ironing and poly(sodium p-styrene-sulfonate) with an excellent hue using the same or sodium p-styrenesulfonate improved in fluidity while keeping good solubility.
An aqueous p-β-bromoethylbenzenesulfonic acid solution and an aqueous sodium hydroxide solution are reacted under specific conditions to control the particle size, thereby obtaining sodium p-styrenesulfonate particles improved in a balance between fluidity and solubility, and further, impurities such as isomers are reduced, thereby obtaining high-purity sodium p-styrenesulfonate with an excellent hue.