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144754

Sigma-Aldrich

4-Phenylimidazole

97%

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About This Item

Empirical Formula (Hill Notation):
C9H8N2
CAS Number:
670-95-1
Molecular Weight:
144.17
Beilstein:
2969
EC Number:
211-580-1
MDL number:
MFCD00005197
UNSPSC Code:
12352005
PubChem Substance ID:
24848681
NACRES:
NA.22

Assay

97%

mp

128-131 °C (lit.)

solubility

acetone: soluble 25 mg/mL, clear, colorless to yellow (typical)

SMILES string

c1ccc(cc1)-c2c[nH]cn2

InChI

1S/C9H8N2/c1-2-4-8(5-3-1)9-6-10-7-11-9/h1-7H,(H,10,11)

InChI key

XHLKOHSAWQPOFO-UHFFFAOYSA-N

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Application

4-Phenylimidazole was used to investigate the protein-ligand interactions in cytochrome P450 from the thermoacidophile Picrophilus torridus. It was used as heme ligand during the crystallization of recombinant human indoleamine 2,3-dioxygenase. It was used in the synthesis of complexes of copper and cobalt.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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M Sono et al.
Biochemistry, 28(13), 5392-5399 (1989-06-27)
The effects of norharman, one of the few known inhibitors of the heme protein indoleamine 2,3-dioxygenase, and of 4-phenylimidazole (4-PheImid), a heme ligand, on the catalytic (Vmax, Km) and spectroscopic properties (optical absorption, CD, and magnetic CD) of the rabbit
M Spatzenegger et al.
Molecular pharmacology, 59(3), 475-484 (2001-02-17)
The molecular basis for reversible inhibition of rabbit CYP2B4 and CYP2B5 and rat CYP2B1 by phenylimidazoles was assessed with active-site mutants and new three-dimensional models based on the crystal structure of CYP2C5. 4-Phenylimidazole was 17- to 32-fold more potent toward
Spectral and metabolic properties of liver microsomes from imidazole-pretreated rabbits.
K K Hajek et al.
Biochemical and biophysical research communications, 108(2), 664-672 (1982-09-30)
Danni L Harris et al.
Proteins, 55(4), 895-914 (2004-05-18)
The molecular origins of temperature-dependent ligand-binding affinities and ligand-induced heme spin state conversion have been investigated using free energy analysis and DFT calculations for substrates and inhibitors of cytochrome P450 2B4 (CYP2B4), employing models of CYP2B4 based on CYP2C5(3LVdH)/CYP2C9 crystal
Y K Li et al.
Journal of biochemistry, 123(3), 416-422 (1998-05-30)
Series of 4-arylimidazoles, omega-N-acylhistamines and 4-(omega-phenylalkyl)imidazoles were synthesized in order to probe the active site topology of sweet almond beta-glucosidase. These imidazole derivatives were shown to be very powerful competitive inhibitors. Among the 20 tested compounds, omega-N-benzoylhistamine and 4-(3'-phenylpropyl)imidazole are
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