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214698

Sigma-Aldrich

Pyridinium dichromate

98%

Sinônimo(s):

PDC

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R$ 600,00
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Disponível para enviar em17 de abril de 2025Detalhes

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About This Item

Fórmula empírica (Notação de Hill):
C10H10N2 · H2Cr2O7
Número CAS:
20039-37-6
Peso molecular:
376.20
Número CE:
243-478-8
Número MDL:
MFCD00013105
Código UNSPSC:
12352005
ID de substância PubChem:
24852846
NACRES:
NA.22

R$ 600,00

Disponível para enviar em17 de abril de 2025Detalhes

Solicite uma grande encomenda

Ensaio

98%

Formulário

solid

adequação da reação

reagent type: oxidant

pf

152-153 °C (lit.)

cadeia de caracteres 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

chave InChI

RCBVKBFIWMOMHF-UHFFFAOYSA-L

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Descrição geral

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

Aplicação

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).

Palavra indicadora

Danger

Classificações de perigo

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

Código de classe de armazenamento

4.1A - Other explosive hazardous materials

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

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

Escolha uma das versões mais recentes:

Certificados de análise (COA)

Lot/Batch Number
MKCR9548
MKCR1442
MKCR1440
MKCR1441
MKCS4424

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J M Bokhorst et al.
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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
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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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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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
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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.

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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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