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3,4,5-Trichlorpyridin
98%
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About This Item
Empirische Formel (Hill-System):
C5H2Cl3N
CAS-Nummer:
Molekulargewicht:
182.44
MDL-Nummer:
UNSPSC-Code:
12352100
PubChem Substanz-ID:
NACRES:
NA.22
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Qualitätsniveau
Assay
98%
mp (Schmelzpunkt)
75-77 °C (dec.) (lit.)
Funktionelle Gruppe
chloro
SMILES String
Clc1cncc(Cl)c1Cl
InChI
1S/C5H2Cl3N/c6-3-1-9-2-4(7)5(3)8/h1-2H
InChIKey
KKWRVUBDCJQHBZ-UHFFFAOYSA-N
Allgemeine Beschreibung
3,4,5-Trichloropyridine is a pyridine derivative. It undergoes oxidation with trifluoroacetic anhydride (TFAA) in the presence of hydrogen peroxide urea complex.
Anwendung
3,4,5-Trichloropyridine may be employed as a secondary standard in quantitative NMR (qNMR) studies.
Signalwort
Warning
H-Sätze
Gefahreneinstufungen
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
Zielorgane
Respiratory system
Lagerklassenschlüssel
11 - Combustible Solids
WGK
WGK 3
Flammpunkt (°F)
Not applicable
Flammpunkt (°C)
Not applicable
Persönliche Schutzausrüstung
dust mask type N95 (US), Eyeshields, Gloves
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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)
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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
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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
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