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Merck
CN

P56607

Pyrazole

98%

Synonym(s):

1,2-Diazole

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About This Item

Empirical Formula (Hill Notation):
C3H4N2
CAS Number:
288-13-1
Molecular Weight:
68.08
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
24898689
EC Number:
206-017-1
Beilstein/REAXYS Number:
103775
MDL number:
MFCD00005234
Assay:
98%
Form:
crystals

Key Documents

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Product Name

Pyrazole, 98%

assay

98%

InChI key

WTKZEGDFNFYCGP-UHFFFAOYSA-N

InChI

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

SMILES string

c1cn[nH]c1

form

crystals

bp

186-188 °C (lit.)

mp

67-70 °C (lit.)

Quality Level

200

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Related Categories

Application

Used as a ligand to prepare organometallic compounds.

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.

signalword

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

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

ppe

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
Mohamed Jawed Ahsan et al.
Bioorganic & medicinal chemistry letters, 22(23), 7029-7035 (2012-10-27)
A series of 43, 3a,4-dihydro-3H-indeno[1,2-c]pyrazole-2-carboxamide/carbothioamide analogues (D01-D43) were analysed using Petra, Osiris, Molinspiration and ALOGPS (POMA) to identify pharmacophore, toxicity prediction, lipophilicity and bioactivity. All the compounds were evaluated for anti-HIV activity. 3-(4-Chlorophenyl)-N-(4-fluorophenyl)-6,7-dimethoxy-3a,4-dihydro-3H-indeno[1,2-c]pyrazole-2-carboxamide (D07) was found to be the most
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