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P56607

Sigma-Aldrich

Pyrazole

98%

Synonym(s):

1,2-Diazole

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Estimated to ship onApril 13, 2025

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5 G
€16.90
25 G
€68.60
100 G
€122.00

About This Item

Empirical Formula (Hill Notation):
C3H4N2
CAS Number:
288-13-1
Molecular Weight:
68.08
Beilstein:
103775
EC Number:
206-017-1
MDL number:
MFCD00005234
UNSPSC Code:
12352100
PubChem Substance ID:
24898689
NACRES:
NA.22

€16.90

Estimated to ship onApril 13, 2025

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Quality Level

200

Assay

98%

form

crystals

bp

186-188 °C (lit.)

mp

67-70 °C (lit.)

SMILES string

c1cn[nH]c1

InChI

1S/C3H4N2/c1-2-4-5-3-1/h1-3H,(H,4,5)

InChI key

WTKZEGDFNFYCGP-UHFFFAOYSA-N

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General description

Pyrazole is a five-membered heterocyclic compound containing two adjacent nitrogen atoms in the ring. Due to its versatile reactivity and ability to form various derivatives, pyrazole and its analogues are commonly used as building blocks in organic synthesis and as bifunctional ligands for metal catalysis. [1] [2]

Application

Used as a ligand to prepare organometallic compounds.[3][4]

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Irrit. 2 - STOT RE 1

Target Organs

spleen,Thyroid

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000360292
0000360292
BCCM1784
0000244691
0000166879

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Transition Met. Chem. (London), 19, 165-165 (1994)
Heterocycles, 37, 2087-2087 (1994)
Roberta Zaninetti et al.
ChemMedChem, 8(4), 633-643 (2013-02-26)
Combretastatin A1 (CA1) binds to the β-subunit at the colchicine binding site of tubulin and inhibits polymerization. As such, it is both an antitumor agent and a vascular disrupting agent. It has been shown to be at least tenfold more
Javeed Ahmad Sheikh et al.
Inorganic chemistry, 52(17), 9717-9719 (2013-08-16)
A novel octadecanuclear copper pyrazolate-phosphonate nanocage with a bowl-shaped arrangement of the copper(II) centers in the asymmetric unit is reported. Characterization of intermediates in both solid and solution states aids to propose the mechanism of such a giant aggregation. Magnetic
Mingzhen Mao et al.
Bioorganic & medicinal chemistry letters, 23(1), 42-46 (2012-12-12)
In an attempt to search for potent insecticides targeting the ryanodine receptor (RyR), a series of novel N-pyridylpyrazolecarboxamides containing cyano substituent in the ortho-position were designed and synthesized. Their insecticidal activities of target compounds against oriental armyworm (Mythimna separata) and
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