374822
4-Bromopyrazole
99%
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About This Item
Empirical Formula (Hill Notation):
C3H3BrN2
CAS Number:
Molecular Weight:
146.97
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352100
MDL number:
Assay:
99%
Form:
solid
Quality Segment
assay
99%
form
solid
bp
250-260 °C (lit.)
mp
93-96 °C (lit.)
functional group
bromo
SMILES string
Brc1cn[nH]c1
InChI
1S/C3H3BrN2/c4-3-1-5-6-2-3/h1-2H,(H,5,6)
InChI key
WVGCPEDBFHEHEZ-UHFFFAOYSA-N
General description
4-Bromopyrazole is a heteroaryl halide and its cyanation in the presence of palladium catalysts has been reported.
4-Bromopyrazole is a pyrazole derivative. It is reported to react with titanium tetrachloride to afford binary adducts. Mutagenicity of 4-bromopyrazole has been tested using the L-arabinose forward mutation assay of Salmonella typhimurium. It is reported to inhibit the oxidative phosphorylation, the ATP-32P exchange reaction, and energy dependent and independent calcium uptake.
Application
4-Bromopyrazole may be used in the preparation of 4-bromo-1-(2-chloroethyl)-1H-pyrazole. It may be used as starting material in the synthesis of 1,4′-bipyrazoles.
4-Bromopyrazole may be used in the preparation of solid hexacoordinate complexes by reaction with dimethyl- and divinyl-tindichloride.
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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