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747858

Sigma-Aldrich

4-Fluoro-1H-pyrazole

95%

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Synonym(s):
4-Fluoropyrazole
Empirical Formula (Hill Notation):
C3H3FN2
CAS Number:
Molecular Weight:
86.07
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

95%

form

solid

mp

38-40 °C

SMILES string

FC1=CNN=C1

InChI

1S/C3H3FN2/c4-3-1-5-6-2-3/h1-2H,(H,5,6)

InChI key

RYXJXPHWRBWEEB-UHFFFAOYSA-N

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Fluoromalonaldehyde bis (dialkyl acetals): synthesis by carbene condensation and transformation to dialkyl fluoromalonates and fluorinated heterocyclic compounds.
Molines H and Wakselman C.
The Journal of Organic Chemistry, 54(23), 5618-5620 (1989)
One-pot synthesis of. beta.-keto sulfones and. beta.-keto sulfoxides from carboxylic acids.
Ibarra CA, et al.
The Journal of Organic Chemistry, 54(23), 5620-5623 (1989)
Relationship between substituent-induced energy and charge effects in proton-transfer equilibria involving heteroaromatic nitrogen systems. The lone pair charge approach.
Catalan J, et al.
Journal of the American Chemical Society, 106(22), 6552-6556 (1984)

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