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Sigma-Aldrich

2-Pyridinol 1-oxide

≥98.0% (N)

Synonyme(s) :

1-Hydroxy-2-pyridone, 2-Hydroxypyridine 1-oxide, HOPO

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100 G
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25 G
132.00 CHF
100 G
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About This Item

Formule empirique (notation de Hill) :
C5H5NO2
Numéro CAS:
Poids moléculaire :
111.10
Beilstein:
1422545
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352005
ID de substance PubChem :
Nomenclature NACRES :
NA.22

132.00 CHF


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Essai

≥98.0% (N)

Forme

solid

Pf

147-152 °C

Chaîne SMILES 

Oc1cccc[n+]1[O-]

InChI

1S/C5H5NO2/c7-5-3-1-2-4-6(5)8/h1-4,7H

Clé InChI

JVHZMYAXZUIZKS-UHFFFAOYSA-N

Description générale

2-Pyridinol 1-oxide (HOPO) is a peptide coupling agent used as a subsititue for HOBt. It can form stable chelate complexes with transition metal ions.[1]

Application

2-Pyridinol 1-oxide can be used:    
  • To fabricate gold electrodes for the electrochemical determination of europium using cyclic voltammetry.[2]        
  • To prepare polymeric nickel (II) complex of 2-hydroxypyridine-N-oxide.[3]
  • In the synthesis of 1-methoxypyrid-4-one in the presence of sodium methoxide and methyl toluene-9-sulphonate.[3]

Pictogrammes

Exclamation mark

Mention d'avertissement

Warning

Mentions de danger

Classification des risques

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Organes cibles

Respiratory system

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

212.0 °F - closed cup

Point d'éclair (°C)

100 °C - closed cup

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Gloves


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Certificats d'analyse (COA)

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Laura Cruickshank et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 31(7), 623-627 (2015-07-15)
This work presents for the first time the electrochemical determination of europium using cyclic voltammetry at gold electrodes modified with 2-pyridinol-1-oxide. A well-defined oxidation peak was observed in cyclic voltammetry as a result of the oxidation of the europium at
Structure and Behavior of Organic Analytical Reagents. Formation Constants of Transition Metal Complexes of 2-Hydroxypyridine-1-Oxide and 2-Mercaptopyridine-1-Oxide.
Sun PJ, et al.
Analytical Chemistry, 36(13), 2485-2488 (1964)
Ali Younes et al.
Metallomics : integrated biometal science, 11(2), 496-507 (2019-01-16)
Uranium is widespread in the environment, resulting both from natural occurrences and anthropogenic activities. Its toxicity is mainly chemical rather than radiological. In the blood it is transported as uranyl UO22+ cation and forms complexes with small ligands like carbonates
875. N-oxides and related compounds. Part V. The tautomerism of 2-and 4-amino-and-hydroxy-pyridine 1-oxide.
Gardne JN & Katritzky AR.
Journal of the Chemical Society, 4375-4385 (1957)
Synthesis, crystal structure and comparative DFT studies of a 1D Ni (II) polymeric complex of 2-Hydroxypyridine-N-oxide
Makhyoun MA, et al.
Journal of Chemical Crystallography, 46(6-7), 269-279 (2016)

Questions

1–2 of 2 Questions  
  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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