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Imidazole

I2399 Sigma-Aldrich

ACS reagent, ≥99% (titration)

Synonym(s) : 1,3-Diaza-2,4-cyclopentadiene, Glyoxaline

Empirical Formula (Hill Notation) : C3H4N2

CAS Number : 288-32-4

Molecular Weight : 68.08

Beilstein : 103853

EC Number : 206-019-2

MDL number : MFCD00005183

eCl@ss : 39161001

PubChem Substance ID : 24895975

NACRES : NA.21

 

 

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SKU: I2399 Category:

Description

PROPERTIES

 

ign. residue≤0.1%bp256 °C (lit.)

ign. residue≤0.2% water

Quality Level 200
grade ACS reagent
vapor pressure <1 mmHg ( 20 °C)
assay ≥99% (titration)
impurities ≤0.2% water
pH 9.5-11.0 (25 °C, 5% in H2O)
pKa (25 °C) 6.95
mp 88-91 °C (lit.)
cation traces Fe: ≤0.001%
SMILES string c1c[nH]cn1
InChI 1S/C3H4N2/c1-2-5-3-4-1/h1-3H,(H,4,5)
InChI key RAXXELZNTBOGNW-UHFFFAOYSA-N

DESCRIPTION

General description

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

Packaging

100, 500 g in poly bottle

Application

Excellent for buffers in the range of pH 6.2-7.8

Other Notes

Go to Redi-Dri Product Listing 792527

Legal Information

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

SAFETY INFORMATION

Pictograms : CorrosionExclamation markHealth hazardGHS05,GHS07,GHS08

Signal Word : Danger

Hazard Statements : H302 – H314 – H360D

Precautionary Statements : P260 – P280 – P301 + P312 – P303 + P361 + P353 – P304 + P340 + P310 – P305 + P351 + P338

Hazard Classifications : Acute Tox. 4 Oral – Eye Dam. 1 – Repr. 1B – Skin Corr. 1C

Storage Class Code : 6.1C – Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK : WGK 2

Flash Point(F) : 293.0 °F – closed cup

Flash Point(C) : 145 °C – closed cup

Personal Protective Equipment : dust mask type N95 (US), Eyeshields, Gloves

 

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