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214698

Sigma-Aldrich

Pyridinium dichromate

98%

Synonym(s):

PDC

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About This Item

Empirical Formula (Hill Notation):
C10H10N2 · H2Cr2O7
CAS Number:
20039-37-6
Molecular Weight:
376.20
EC Number:
243-478-8
MDL number:
MFCD00013105
UNSPSC Code:
12352005
PubChem Substance ID:
24852846
NACRES:
NA.22

Quality Level

200

Assay

98%

form

solid

reaction suitability

reagent type: oxidant

mp

152-153 °C (lit.)

SMILES string

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

InChI key

RCBVKBFIWMOMHF-UHFFFAOYSA-L

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General description

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).

Signal Word

Danger

Hazard Statements

H228,H314,H317,H350i,H410

Hazard Classifications

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

Storage Class Code

4.1A - Other explosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

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Certificates of Analysis (COA)

Lot/Batch Number
MKCN3166
MKCL4761
MKCL1536
MKCG8346
MKCG3419

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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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