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P56003

Sigma-Aldrich

Pyrazin

≥99%

Synonym(e):

1,4-Diazabenzene, 1,4-Diazine, Paradiazine, Piazine, p-Diazine

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5 G
€ 29,40
10 G
€ 42,10
25 G
€ 72,20

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5 G
€ 29,40
10 G
€ 42,10
25 G
€ 72,20

About This Item

Empirische Formel (Hill-System):
C4H4N2
CAS-Nummer:
290-37-9
Molekulargewicht:
80.09
Beilstein:
103905
EG-Nummer:
206-027-6
MDL-Nummer:
MFCD00006122
UNSPSC-Code:
12352100
PubChem Substanz-ID:
24898676
NACRES:
NA.22

€ 29,40

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Assay

≥99%

Form

crystals

bp

115-116 °C (lit.)

mp (Schmelzpunkt)

50-56 °C (lit.)

Dichte

1.031 g/mL at 25 °C (lit.)

SMILES String

c1cnccn1

InChI

1S/C4H4N2/c1-2-6-4-3-5-1/h1-4H

InChIKey

KYQCOXFCLRTKLS-UHFFFAOYSA-N

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Allgemeine Beschreibung

Pyrazine is a 1,4-diazine and an electron-deficient N-heteroarene found in several natural products, APIs, agrochemicals, and functional materials.[1]

Anwendung

Pyrazine can be used:
  • As a bridging ligand in the synthesis of Cu(II) linear chain coordination complexes.[2]
  • To prepare Cu(I) derived coordination polymers, which are used in the synthesis of metal-organic frameworks (MOFs).[3]

Piktogramme

Flame
GHS02

Signalwort

Danger

H-Sätze

H228

Gefahreneinstufungen

Flam. Sol. 1

Lagerklassenschlüssel

4.1B - Flammable solid hazardous materials

WGK

WGK 3

Flammpunkt (°F)

131.0 °F - closed cup

Flammpunkt (°C)

55 °C - closed cup

Persönliche Schutzausrüstung

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

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
0000430011
0000430011
0000369385
0000323573
0000323574

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Pyrazine-bridged Cu (ii) chains: diaquabis (n-methyl-2-pyridone) copper (ii) perchlorate complexes
Kirkman-Davis E, et al.
Dalton Transactions, 49(39), 13693-13703 (2020)
Microwave assisted hydrothermal synthesis of a novel CuI-sulfate-pyrazine MOF
Amo-Ochoa P, et al.
Inorganic Chemistry Communications, 10(8), 921-924 (2007)
Direct C-H photoarylation of diazines using aryldiazonium salts and visible-light
Silva RC, et al.
Royal Society of Chemistry Advances, 10(52), 31115-31122 (2020)
Oleg V Larionov et al.
Organic letters, 16(3), 864-867 (2014-01-15)
A one-step transformation of heterocyclic N-oxides to 2-alkyl-, aryl-, and alkenyl-substituted N-heterocycles is described. The success of this broad-scope methodology hinges on the combination of copper catalysis and activation by lithium fluoride or magnesium chloride. The utility of this method
Nicole Favreau-Farhadi et al.
Journal of food science, 80(10), C2140-C2146 (2015-09-27)
Rosmarinic acid and Epigallocatechin gallate concentrations were studied as natural inhibitors of Maillard browning in glucose/glycine model systems, and in bakery rolls and applesauce. The concentrations of the inhibitors were varied to determine the highest level of inhibition without a
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Questions

1–2 of 2 Questions  

  1. 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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  2. 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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