所有图片(1)

文件

467936

3,4,5-三氯吡啶

Name: 3,4,5-三氯吡啶
Brand: ALDRICH

98%

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经验公式（希尔记法）:

C₅H₂Cl₃N

CAS号:

33216-52-3

分子量:

182.44

MDL编号:

MFCD00051685

PubChem化学物质编号:

24870447

NACRES:

NA.22

检测方案

98%

mp

75-77 °C (dec.) (lit.)

SMILES string

Clc1cncc(Cl)c1Cl

InChI

1S/C5H2Cl3N/c6-3-1-9-2-4(7)5(3)8/h1-2H

InChI key

KKWRVUBDCJQHBZ-UHFFFAOYSA-N

一般描述

3,4,5-Trichloropyridine is a pyridine derivative. It undergoes oxidation with trifluoroacetic anhydride (TFAA) in the presence of hydrogen peroxide urea complex.

应用

3,4,5-Trichloropyridine may be employed as a secondary standard in quantitative NMR (qNMR) studies.

象形图

GHS07

警示用语：

Warning

危险声明

H315 - H319 - H335

预防措施声明

P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338

危险分类

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

靶器官

Respiratory system

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

dust mask type N95 (US), Eyeshields, Gloves

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T1503

货号

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A practical, efficient, and rapid method for the oxidation of electron deficient pyridines using trifluoroacetic anhydride and hydrogen peroxide-urea complex.

Caron S, et al.

Tetrahedron Letters, 41(14), 2299-2302 (2000)

Survey and qualification of internal standards for quantification by 1H NMR spectroscopy.

Torgny Rundlöf et al.

Journal of pharmaceutical and biomedical analysis, 52(5), 645-651 (2010-03-09)

In quantitative NMR (qNMR) selection of an appropriate internal standard proves to be crucial. In this study, 25 candidate compounds considered to be potent internal standards were investigated with respect to the ability of providing unique signal chemical shifts, purity

Use and qualification of primary and secondary standards employed in quantitative ¹H NMR spectroscopy of pharmaceuticals.

Torgny Rundlöf et al.

Journal of pharmaceutical and biomedical analysis, 93, 111-117 (2013-11-12)

Standards are required in quantitative NMR (qNMR) to obtain accurate and precise results. In this study acetanilide was established and used as a primary standard. Six other chemicals were selected as secondary standards: 3,4,5-trichloropyridine, dimethylterephthalate, maleic acid, 3-sulfolene, 1,4-bis(trimethylsilyl)benzene, and

Application of quantitative NMR for purity determination of standard ACE inhibitors.

Shi Shen et al.

Journal of pharmaceutical and biomedical analysis, 114, 190-199 (2015-06-13)

This study investigated the accuracy of the quantitative NMR method for purity determination of ACE inhibitors reference standards and the discovery of two pairs of new diastereoisomers. Six types of ACE inhibitors, imidapril hydrochloride, benazepril hydrochloride, lisinopril, enalapril maleate, quinapril

A general analytical platform and strategy in search for illegal drugs.

Monika Johansson et al.

Journal of pharmaceutical and biomedical analysis, 100, 215-229 (2014-08-30)

An effective screening procedure to identify and quantify active pharmaceutical substances in suspected illegal medicinal products is described. The analytical platform, consisting of accurate mass determination with liquid chromatography time-of-flight mass spectrometry (LC-QTOF-MS) in combination with nuclear magnetic resonance (NMR)

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