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214698

Sigma-Aldrich

Pyridinium dichromate

98%

Synonyme(s) :

PDC

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About This Item

Formule empirique (notation de Hill):
C10H10N2 · H2Cr2O7
Numéro CAS:
20039-37-6
Poids moléculaire :
376.20
Numéro CE :
243-478-8
Numéro MDL:
MFCD00013105
Code UNSPSC :
12352005
ID de substance PubChem :
24852846
Nomenclature NACRES :
NA.22

Pureté

98%

Forme

solid

Pertinence de la réaction

reagent type: oxidant

Pf

152-153 °C (lit.)

Chaîne SMILES 

c1ccncc1.c2ccncc2.O[Cr](=O)(=O)O[Cr](O)(=O)=O

InChI

1S/2C5H5N.2Cr.2H2O.5O/c2*1-2-4-6-5-3-1;;;;;;;;;/h2*1-5H;;;2*1H2;;;;;/q;;2*+1;;;;;;;/p-2

Clé InChI

RCBVKBFIWMOMHF-UHFFFAOYSA-L

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Description générale

Pyridinium dichromate is a pyridinium salt and strong oxidizing agent to convert primary alcohols and secondary alcohols to aldehydes and ketones respectively.

Application

Oxidizing agent for conversion of primary alcohols to aldehydes and ketones, acetals to esters, and didehydroketones to enones in the presence of tert-butyl hydroperoxide (cat. no. 213128).

Mention d'avertissement

Danger

Mentions de danger

H228,H314,H317,H350i,H410

Classification des risques

Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B Inhalation - Eye Dam. 1 - Flam. Sol. 1 - Skin Corr. 1B - Skin Sens. 1

Code de la classe de stockage

4.1A - Other explosive hazardous materials

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Yihui Zhou et al.
Environmental pollution (Barking, Essex : 1987), 219, 932-938 (2016-10-07)
In this study, polybrominated diphenyl ethers (PBDEs) and methoxylated polybrominated diphenyl ethers (MeO-PBDEs) were analyzed in eleven freshwater fish species from Dianshan Lake, Shanghai, China. The highest concentrations of PBDEs and MeO-PBDEs were found in snakehead, with mean values of
J. Mol. Catal. A: Chem., 250, 70-70 (2006)
K M Halkes et al.
Carbohydrate research, 309(2), 161-174 (1998-09-19)
To contribute to the possibilities to study the ability of oligosaccharide fragments of hyaluronic acid to induce angiogenesis, several hyaluronic-acid-related oligosaccharides and their 6-O-sulfated analogues were synthesised as their 4-methoxyphenyl glycosides having 2-acetamido-2-deoxy-D-glucopyranose at the reducing end. In all syntheses
Yong-Hua Li et al.
Epilepsy research, 128, 149-157 (2016-11-14)
Localization of the epileptogenic zone (EZ) is essential for the successful surgical treatment of medically intractable epilepsy. In the present study, stereo-EEG (SEEG) recordings were obtained from seven patients underwent presurgical evaluation for treatment of intractable epilepsy. Partial directed coherence
Mark Hanly et al.
Paediatric and perinatal epidemiology, 32(1), 114-125 (2017-11-23)
Preterm birth and developmental vulnerability are more common in Australian Aboriginal compared with non-Aboriginal children. We quantified how gestational age relates to developmental vulnerability in both populations. Perinatal datasets were linked to the Australian Early Development Census (AEDC), which collects
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