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Merck
CN

230138

Oxazole

98%

Synonym(s):

1,3-Oxazole, 3-Azafuran

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About This Item

Empirical Formula (Hill Notation):
C3H3NO
CAS Number:
Molecular Weight:
69.06
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
206-020-8
Beilstein/REAXYS Number:
103851
MDL number:
Assay:
98%
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Product Name

Oxazole, 98%

InChI key

ZCQWOFVYLHDMMC-UHFFFAOYSA-N

InChI

1S/C3H3NO/c1-2-5-3-4-1/h1-3H

SMILES string

c1cocn1

assay

98%

refractive index

n20/D 1.425 (lit.)

bp

69-70 °C (lit.)

mp

−87-−84 °C (lit.)

density

1.05 g/mL at 25 °C (lit.)

Quality Level

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Application

Oxazole can be used:
  • in the intramolecular Diels–Alder (IMDA) cycloaddition reaction to synthesis natural products
  • as a precursor in the ring opening, nucleophilic addition and recyclization as well as [2 + 2], [3 + 2], and [4 + 2] cycloaddition reactions

General description

Oxazole is the parent molecule for a large class of heterocyclic aromatic compounds. It is a weak base that can be used as an electron-deficient diene in the Diels-Alder cycloaddition reaction. It undergoes nitration, sulfonation, halogenation, Friedel-Crafts alkylation, and acylation.

pictograms

FlameCorrosion

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1 - Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

66.2 °F - closed cup

flash_point_c

19 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Information

危险化学品
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J B Huppa et al.
The Journal of experimental medicine, 186(3), 393-403 (1997-08-04)
The T cell receptor for antigen (TCR) is a multisubunit complex that consists of at least seven polypeptides: the clonotypic, disulfide-linked alpha/beta heterodimer that is noncovalently associated with the invariant polypeptides of the CD3 complex (CD3-gamma, -delta, -epsilon) and zeta
Fengjiao Zhang et al.
Toxicological sciences : an official journal of the Society of Toxicology, 140(1), 118-134 (2014-04-23)
The generation of reactive oxygen species (ROS) has been implicated in the pathogenesis of renal ischemia/reperfusion injury, and many other pathological conditions. DNA strand breaks caused by ROS lead to the activation of poly(ADP-ribose)polymerase-1 (PARP-1), the excessive activation of which
Lori M Culberson et al.
Physical chemistry chemical physics : PCCP, 16(9), 3964-3972 (2014-01-22)
Bond breaking is a challenging problem in both experimental and theoretical chemistry, due to the transient nature and multi-configurational electronic structure of dissociating molecules. We use anion photodetachment to probe the diradical interactions in the ring-opening reaction of oxazole and
Systematic scientific study of 1, 3-oxazole derivatives as a useful lead for pharmaceuticals: A review
Joshi S, et al.
The pharma innovation journal, 6, 109-109 (2017)
Marta Cegłowska et al.
Marine drugs, 18(9) (2020-09-02)
Cyanobactins are a large family of ribosomally synthesized and post-translationally modified cyanopeptides (RiPPs). Thus far, over a hundred cyanobactins have been detected in different free-living and symbiotic cyanobacteria. The majority of these peptides have a cyclic structure. The occurrence of

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