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Merck

214698

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
NACRES:
NA.22
PubChem Substance ID:
24852846
UNSPSC Code:
12352005
EC Number:
243-478-8
MDL number:
MFCD00013105

Key Documents

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Product Name

Pyridinium dichromate, 98%

Quality Level

200

InChI key

RCBVKBFIWMOMHF-UHFFFAOYSA-L

InChI

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

SMILES string

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

assay

98%

form

solid

reaction suitability

reagent type: oxidant

mp

152-153 °C (lit.)

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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).

General description

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

signalword

Danger

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

4.1A - Other explosive hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

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Certificates of Analysis (COA)

Lot/Batch Number
MKCR9548
MKCR1442
MKCR1440
MKCR1441
MKCS4424

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J. Mol. Catal. A: Chem., 250, 70-70 (2006)
J M Bokhorst et al.
Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc, 33(5), 825-833 (2019-12-18)
Tumor budding is a promising and cost-effective biomarker with strong prognostic value in colorectal cancer. However, challenges related to interobserver variability persist. Such variability may be reduced by immunohistochemistry and computer-aided tumor bud selection. Development of computer algorithms for this
Hong-Viet Ngo et al.
eLife, 9 (2020-07-14)
Sleep is pivotal for memory consolidation. According to two-stage accounts, memory traces are gradually translocated from hippocampus to neocortex during non-rapid-eye-movement (NREM) sleep. Mechanistically, this information transfer is thought to rely on interactions between thalamocortical spindles and hippocampal ripples. To
Martin Schulz et al.
European journal of heart failure, 21(8), 1012-1021 (2019-05-28)
Medication non-adherence is frequent and is associated with high morbidity and mortality in patients with chronic heart failure (CHF). We investigated whether an interdisciplinary intervention improves adherence in elderly CHF patients. The study population (mean age 74 years, 62% male, mean
Sameer Shivji et al.
Histopathology, 77(3), 351-368 (2020-05-03)
Poorly differentiated clusters (PDC), defined as small groups of ≥5 tumour cells without glandular differentiation, have gained recent attention as a promising prognostic factor in colorectal cancer (CRC). Numerous studies have shown PDC to be significantly associated with other adverse
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Articles

Oxidizing and Reducing Agents

Oxidation and reduction reactions are some of the most common transformations encountered in organic synthesis

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