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274089

Sigma-Aldrich

2-Chlorobenzoxazole

99%

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Empirical Formula (Hill Notation):
C7H4ClNO
CAS Number:
Molecular Weight:
153.57
Beilstein:
115982
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Assay

99%

form

liquid

refractive index

n20/D 1.566 (lit.)

bp

201-202 °C (lit.)

mp

7 °C (lit.)

density

1.345 g/mL at 25 °C (lit.)

SMILES string

Clc1nc2ccccc2o1

InChI

1S/C7H4ClNO/c8-7-9-5-3-1-2-4-6(5)10-7/h1-4H

InChI key

BBVQDWDBTWSGHQ-UHFFFAOYSA-N

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This Item
C56352M32704112143
2-Chlorobenzoxazole 99%

Sigma-Aldrich

274089

2-Chlorobenzoxazole

2-Methyl-2-butene ≥99%, purified by redistillation

Sigma-Aldrich

M32704

2-Methyl-2-butene

2-Methylbenzothiazole 99%

Sigma-Aldrich

112143

2-Methylbenzothiazole

form

liquid

form

liquid

form

-

form

-

refractive index

n20/D 1.566 (lit.)

refractive index

n20/D 1.385 (lit.)

refractive index

n20/D 1.385 (lit.)

refractive index

n20/D 1.617 (lit.)

bp

201-202 °C (lit.)

bp

51-52 °C (lit.)

bp

35-38 °C (lit.)

bp

238 °C (lit.)

mp

7 °C (lit.)

mp

−25 °C (lit.)

mp

−134 °C (lit.)

mp

11-14 °C (lit.)

density

1.345 g/mL at 25 °C (lit.)

density

0.851 g/mL at 25 °C (lit.)

density

0.662 g/mL at 25 °C (lit.)

density

1.173 g/mL at 25 °C (lit.)

Application

2-Chlorobenzoxazole was used in the synthesis of 2-(2-naphthylamino)benzoxazole via reaction with 2-amino-1-naphthalenesulfonic acid.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

185.0 °F - closed cup

Flash Point(C)

85 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Reaction of 2-chlorobenzoxazole with anthranilic acids and 2-amino-1-naphthalenesulfonic acid.
J Sam et al.
Journal of pharmaceutical sciences, 57(8), 1445-1446 (1968-08-01)

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