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含氟合成砌块
我们可为您提供大量能够简化目标化合物发现的含氟合成砌块,如三氟甲基、二氟甲基、三氟甲磺酸酯和五氟硫烷基取代基。
药品、违禁药品和酒精标准品
浏览各种可实验室检测各种药品、违禁药品和诊断生物标志物的认证参考物质。
Stable Isotopes
ISOTEC® Stable Isotopes are stable isotope compounds, ranging from gases to complex molecules, that are useful for tracer studies in proteomics and metabolomics, agents for MRI / MRS, and in a wide range of other biomedical applications.
Enzyme-Linked Immunosorbent Assay (ELISA) Kits
Enzyme-linked immunosorbent assay (ELISA) kits, reagents, and resources that provide ultrasensitive biomarker detection.
石墨烯量子点:属性、合成及应用
阐释了石墨烯量子点的属性、合成及应用。GQD具有无毒性、良好溶解性、稳定的光激发光以及更好的表面接枝属性等优势。
多巴胺、去甲肾上腺素和肾上腺素的合成
多巴胺-β-羟化酶位于去甲肾上腺素神经元的胺存储囊泡内。多巴胺通过主动运输而从细胞质转运到囊泡中。由于该酶是一种含铜的蛋白质,因此其活性会被铜螯合剂,如二乙基二硫代氨基甲酸酯和FLA-63所抑制。对该酶的抑制可有效降低组织去甲肾上腺素的水平。
有机合成砌块
在我们的有机合成砌块产品组合中找到推动您的研究进步所需的基本成分,包括烷烃、烯烃、炔烃、二烯烃、芳烃、砷化合物、Baran官能化合成砌块、Baran受阻胺、来自Liverpool ChiroChem的合成砌块和手性小分子以及用于SuFEx的合成砌块:下一代点击反应、碳鎓盐、羰基化合物。
过渡金属催化剂
凭借我们卓越的过渡金属催化剂产品线提高反应速度,助您实现有机和有机金属化学的突破。
肽修饰:N-末端、内部、和C-末端
肽修饰:N-末端、内部、和C-末端
脂多糖
脂多糖(LPS)是革兰氏阴性细菌细胞壁的特征成分; 在革兰氏阳性细菌中不存在。它位于膜外层,在无包膜菌株中暴露于细胞表面。它们有助于维持外膜完整性,保护细胞免受胆汁盐和亲脂性抗生素的作用。
胃肠道癌症中的免疫组织化学应用
结直肠癌是男性和女性中第三大常见癌症。预计2016年将发生136,000例结直肠癌。
用于癌症诊断治疗的磁性纳米颗粒
最近出现的许多高功能纳米材料为癌症的认识、诊断和治疗提供了新的方案。
杂化钙钛矿太阳能电池最新进展
近几十年来,人们对于环境可持续、商业可行的能源的迫切需求,催生并推动了大量致力实现低生产成本、高能效发电系统的研究工作。
MSI检测和IHC
结直肠癌是大多数西方国家居民中普遍发生的疾病,仅次于肺癌。
Imprint®染色质免疫沉淀试剂盒(CHP1)实验方案
Sigma Imprint染色质免疫沉淀试剂盒利用检测板系统,可实现快速的高通量ChIP检测
Amino Acids, Resins & Reagents for Peptide Synthesis
We offer an extensive range of amino acids, resins, and reagents of unparalleled quality, including Novabiochem®, for peptide synthesis, high-throughput organic chemistry, labeling peptides, and custom manufactured products.
Enzyme-Linked Immunosorbent Assay (ELISA) Kits
Enzyme-linked immunosorbent assay (ELISA) kits, reagents, and resources that provide ultrasensitive biomarker detection.
Asymmetric Allylic Alkylation
Palladium-catalyzed asymmetric allylic alkylation (AAA) has proven to be an exceptionally powerful method for the efficient construction of stereogenic centers.
Stable Isotopes
ISOTEC® Stable Isotopes are stable isotope compounds, ranging from gases to complex molecules, that are useful for tracer studies in proteomics and metabolomics, agents for MRI / MRS, and in a wide range of other biomedical applications.
Halogenated Heterocycles
Shop our diverse portfolio of halogenated heterocycles for use in a vast array of synthetic protocols, including lithiation and palladium catalyzed cross-coupling methodologies.
HPLC Columns & Accessories
Our wide selection of HPLC columns for small and large molecule analysis allows you to enhance the separation process in terms of retention, resolution, selectivity, and analysis time, all while reducing the time for method development.
Dopamine, Norepinephrine and Ephinephrine Synthesis
Dopamine-β-hydroxylase is located inside amine storage vesicles of norepinephrine neurons. Dopamine is actively transported from the cytoplasm into the vesicles. As the enzyme is a copper containing protein, its activity can be inhibited by copper chelating agents, such as diethyldithiocarbamate...
Graphene Quantum Dots: Properties, Synthesis & Applications
Properties, synthesis & applications of Graphene Quantum Dots explained. GQDs have advantages of nontoxicity, good solubility, stable photoluminescence & better surface grafting.
QuinoxP*
QuinoxP*: Air-Stable and Highly Efficient and Productive Chiral Ligands
Flow-Modulation Comprehensive 2D GC/MS for the Determination of Allergens in Fragrances
The proposed method appears to be reliable and sensitive for the determination of allergens in perfumes, following the SCCNFP Opinion.
Peptide Modifications: N-Terminal, Internal, and C-Terminal
Peptide Modifications: N-Terminal, Internal, and C-Terminal
Peptide Modifications: N-Terminal, Internal, and C-Terminal
Peptide Modifications: N-Terminal, Internal, and C-Terminal
Improved Recoveries and Lower Background for GC/MS/MS and LC/MS/MS Analysis of Pesticides in Green Tea
A procedure for cleanup of green tea extracts provides low background and allowed for the analysis of more pesticides at lower levels than QuEChERS. Uses less solvents and no toluene.
Isotopic Labeling for NMR Spectroscopy of Biological Solids
Isotopic Labeling for NMR Spectroscopy of Biological Solids;
Display & Optoelectronics Tutorial
A tutorial of Display and Optoelectronics from Sigma-Aldrich.
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