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467936

Sigma-Aldrich

3,4,5-Trichloropyridine

98%

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About This Item

Formula empirica (notazione di Hill):
C5H2Cl3N
Numero CAS:
33216-52-3
Peso molecolare:
182.44
Numero MDL:
MFCD00051685
Codice UNSPSC:
12352100
ID PubChem:
24870447
NACRES:
NA.22

Saggio

98%

Punto di fusione

75-77 °C (dec.) (lit.)

Stringa SMILE

Clc1cncc(Cl)c1Cl

InChI

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

Descrizione generale

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

Applicazioni

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

Pittogrammi

Exclamation mark
GHS07

Avvertenze

Warning

Indicazioni di pericolo

H315,H319,H335

Classi di pericolo

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

Organi bersaglio

Respiratory system

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

dust mask type N95 (US), Eyeshields, Gloves

Certificati d'analisi (COA)

Cerca il Certificati d'analisi (COA) digitando il numero di lotto/batch corrispondente. I numeri di lotto o di batch sono stampati sull'etichetta dei prodotti dopo la parola ‘Lotto’ o ‘Batch’.

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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)
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
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
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
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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