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%
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
Related Categories
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.
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
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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