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I2399

Sigma-Aldrich

Imidazole

Imidazole

ACS reagent, ≥99% (titration)

Synonyme(s) :

1,3-Diaza-2,4-cyclopentadiène, Glyoxaline

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About This Item

Formule empirique (notation de Hill):
C3H4N2
Numéro CAS:
288-32-4
Poids moléculaire :
68.08
Beilstein:
103853
Numéro CE :
206-019-2
Numéro MDL:
MFCD00005183
Code UNSPSC :
12352005
eCl@ss :
39161001
ID de substance PubChem :
24895975
Nomenclature NACRES :
NA.21
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Qualité

ACS reagent

Niveau de qualité

200
300

Pression de vapeur

<1 mmHg ( 20 °C)

Essai

≥99% (titration)

Impuretés

≤0.2% water

Résidus de calcination

≤0.1%

pH

9.5-11.0 (25 °C, 5% in H2O)

pKa (25 °C)

6.95

pb

256 °C (lit.)

Pf

88-91 °C (lit.)

Traces de cations

Fe: ≤0.001%

Chaîne SMILES 

c1c[nH]cn1

InChI

1S/C3H4N2/c1-2-5-3-4-1/h1-3H,(H,4,5)

Clé InChI

RAXXELZNTBOGNW-UHFFFAOYSA-N

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Description générale

Imidazole is a five-membered heterocycle that is found in many naturally occurring compounds.[1] It exhibits both acidic and basic properties. It is reported to be an inhibitor of thromboxane formation.[2] Its vertical spectrum and the radiationless decay have been recorded and analyzed.[3]

Application

Excellent pour les tampons compris dans la plage de pH 6,2-7,8

Autres remarques

Go to Redi-Dri™ Product Listing 792527

Informations légales

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Pictogrammes

Health hazardCorrosionExclamation mark
GHS08,GHS05,GHS07

Mention d'avertissement

Danger

Mentions de danger

H302,H314,H360D

Classification des risques

Acute Tox. 4 Oral - Eye Dam. 1 - Repr. 1B - Skin Corr. 1C

Code de la classe de stockage

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

293.0 °F - closed cup

Point d'éclair (°C)

145 °C - closed cup

Équipement de protection individuelle

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

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Certificats d'analyse (COA)

Lot/Batch Number
0000424748
0000424748
0000422287
0000422287
0000422288

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USP

1336500

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I0086000

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tert-Butyldimethylsilyl chloride reagent grade, 97%

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Zhong Jin
Natural product reports, 28(6), 1143-1191 (2011-04-08)
A great number of structurally diverse natural products containing five-membered heterocyclic subunits, such as imidazole, oxazole, thiazole, and their saturated congeners, are abundant in nature. These naturally occurring metabolites often exhibit extensive and pharmacologically important biological activities. The latest progress
S Moncada et al.
Prostaglandins, 13(4), 611-618 (1977-04-01)
Imidazole inhibits the enzymic conversion of the endoperoxides (PGG2 and PGH2) to thromboxane A2 by platelet microsomes (IC50: 22 MICRONG/ML; DETERMINED BY BIOASSAY). The inhibitor is selective, for prostaglandin cyclo-oxygenase is only affected at high doses. Radiochemical data confirms that
UV excitation and radiationless deactivation of imidazole.
Barbatti M, et al.
J. Chem. Phys. , 130(3), 034305-034305 (2009)
Peter Canning et al.
Journal of molecular biology, 426(13), 2457-2470 (2014-04-29)
The discoidin domain receptors (DDRs), DDR1 and DDR2, form a unique subfamily of receptor tyrosine kinases that are activated by the binding of triple-helical collagen. Excessive signaling by DDR1 and DDR2 has been linked to the progression of various human
Pam M Van Ry et al.
Molecular therapy : the journal of the American Society of Gene Therapy, 23(8), 1285-1297 (2015-06-09)
Duchenne muscular dystrophy (DMD) is a fatal neuromuscular disease caused by mutations in the dystrophin gene, leading to the loss of a critical component of the sarcolemmal dystrophin glycoprotein complex. Galectin-1 is a small 14 kDa protein normally found in skeletal
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Questions

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  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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