1-PHENYLPYRAZOLE Chemical Properties

Melting point:

11°C(lit.)

Boiling point:

141-142 °C/30 mmHg (lit.)

Density 

1.091 g/mL at 25 °C (lit.)

refractive index 

1.594-1.598

Flash point:

109°C

storage temp. 

Sealed in dry,Room Temperature

form 

clear liquid

pka

0.16±0.10(Predicted)

color 

Colorless to Yellow

Water Solubility 

Soluble in water.

λmax

255nm(EtOH)(lit.)

BRN 

2594

CAS DataBase Reference

1126-00-7(CAS DataBase Reference)

NIST Chemistry Reference

1H-Pyrazole, 1-phenyl-(1126-00-7)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

37/39-26

WGK Germany 

3

HazardClass 

IRRITANT

HS Code 

29339900

MSDS

• Language:English Provider:ACROS
• Language:English Provider:ALFA

1-PHENYLPYRAZOLE Usage And Synthesis

Chemical Properties

clear yellow to brown liquid

Uses

1-Phenylpyrazole has been used:

• in the preparation of 4,5-diphenylpyrazolo[1,5-a]quinoline, 1-(1,2,3,4-tetraphenylnaphthalen-5-yl)pyrazole and 1-(1,2,3,4,5,6,7,8-octaphenylanthracen-9-yl)pyrazole
• as cyclometallated ligand in the preparation of new heteroleptic iridium(III) complexes

Definition

ChEBI: A member of the class of pyrazoles that is 1H-pyrazole substituted by a phenyl group at position 1.

General Description

1-Phenylpyrazole undergoes cyclometallation with rhodium trichloride to yield rac-di(μ-chloro)tetrakis[2-(pyrazol-1-yl)phenyl-C¹,N²′]dirhodium. The activation of the C-H bond of 1-phenylpyrazole autocatalyzed by the co-product HOAc was studied.

1-PHENYLPYRAZOLE(1126-00-7)Related Product Information

• Mordant Red 7
• ACID YELLOW 54
• ACID ORANGE 63
• 5-AMINO-1-(4-CHLOROPHENYL)-1H-PYRAZOLE-4-CARBONITRILE
• 5-amino-1-phenylpyrazole-4-carboxylic acid ethyl ester,5-amino-4-ethoxycarbonyl-1-phenylpyrazole
• 5-Amino-3-cyanomethyl-1-phenylpyrazole-4-carbonitrile
• 1-PHENYLPYRAZOLE
• ACID ORANGE 74
• ACID YELLOW 40
• ETHYL 5-METHYL-1-PHENYL-1H-PYRAZOLE-4-CARBOXYLATE
• ACID YELLOW 11
• Mordant Red 19
• 5-AMINO-3-METHYL-PHENYLPYRAZOLE
• 3,5-DIMETHYL-1-PHENYLPYRAZOLE-4-CARBOXAL- DEHYDE 99%
• CIBACRON BRILLIANT YELLOW 3G-P
• 3-METHYL-1-PHENYLPYRAZOLE 98%
• ACID RED 183
• 5-AMINO-1-PHENYLPYRAZOLE-4-CARBONITRILE