467936
3,4,5-Trichloropyridine
98%
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Fórmula empírica (notación de Hill):
C5H2Cl3N
Número CAS:
Peso molecular:
182.44
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352100
MDL number:
Assay:
98%
Servicio técnico
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Permítanos ayudarleQuality Level
assay
98%
mp
75-77 °C (dec.) (lit.)
functional group
chloro
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
General description
3,4,5-Trichloropyridine is a pyridine derivative. It undergoes oxidation with trifluoroacetic anhydride (TFAA) in the presence of hydrogen peroxide urea complex.
Application
3,4,5-Trichloropyridine may be employed as a secondary standard in quantitative NMR (qNMR) studies.
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Clase de almacenamiento
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
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)
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