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214698

Sigma-Aldrich

Pyridinium dichromate

98%

Sinónimos:

PDC

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About This Item

Fórmula empírica (notación de Hill):
C10H10N2 · H2Cr2O7
Número de CAS:
20039-37-6
Peso molecular:
376.20
Número CE:
243-478-8
Número MDL:
MFCD00013105
Código UNSPSC:
12352005
ID de la sustancia en PubChem:
24852846
NACRES:
NA.22
En este momento no podemos mostrarle ni los precios ni la disponibilidad

Nivel de calidad

200

Ensayo

98%

Formulario

solid

idoneidad de la reacción

reagent type: oxidant

mp

152-153 °C (lit.)

cadena 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

Clave InChI

RCBVKBFIWMOMHF-UHFFFAOYSA-L

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Descripción general

Pyridinium dichromate is a pyridinium salt and strong oxidizing agent to convert primary alcohols and secondary alcohols to aldehydes and ketones respectively.[1]

Aplicación

Oxidizing agent for conversion of primary alcohols to aldehydes and ketones,[2] acetals to esters,[3] and didehydroketones to enones[4] in the presence of tert-butyl hydroperoxide (cat. no. 213128).

Palabra de señalización

Danger

Frases de peligro

H228,H314,H317,H350i,H410

Clasificaciones de peligro

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

Código de clase de almacenamiento

4.1A - Other explosive hazardous materials

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

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

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Certificados de análisis (COA)

Lot/Batch Number
MKCR9548
MKCR1441
MKCR1442
MKCR1440
MKCS4424

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J. Mol. Catal. A: Chem., 250, 70-70 (2006)
Dympna Leonard et al.
Nutrition & dietetics: the journal of the Dietitians Association of Australia, 75(5), 457-467 (2018-12-12)
Anaemia during pregnancy is common worldwide. In Australia between 7.1% and 11% of mothers have been reported to have anaemia in pregnancy. Higher rates are reported for Aboriginal and Torres Strait Islander women (Townsville: 34.2%, remote Northern Territory: 50%). The
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
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
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
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Oxidizing and Reducing Agents

Oxidation and reduction reactions are some of the most common transformations encountered in organic synthesis, and are some of the organic chemist’s most powerful tools for creating novel products. Below is a list of the most commonly used oxidizing and reducing agents currently available in our catalog.

Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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