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M75802

Sigma-Aldrich

3-Methylpyrazole

97%

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Empirical Formula (Hill Notation):
C4H6N2
CAS Number:
Molecular Weight:
82.10
Beilstein/REAXYS Number:
1454
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

97%

form

liquid

refractive index

n20/D 1.495 (lit.)

bp

204 °C (lit.)

density

1.02 g/mL at 25 °C (lit.)

SMILES string

Cc1cc[nH]n1

InChI

1S/C4H6N2/c1-4-2-3-5-6-4/h2-3H,1H3,(H,5,6)

InChI key

XKVUYEYANWFIJX-UHFFFAOYSA-N

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1 of 4

This Item
91493644919M5156
3-Methylpyrazole 97%

M75802

3-Methylpyrazole

1-Methylpyrazole ≥99.0% (GC)

91493

1-Methylpyrazole

3-Methylpyrazole-4-carboxylic acid 97%

644919

3-Methylpyrazole-4-carboxylic acid

3-Methylpyrrole liquid

M5156

3-Methylpyrrole

Quality Level

100

Quality Level

300

Quality Level

100

Quality Level

100

density

1.02 g/mL at 25 °C (lit.)

density

0.988 g/mL at 20 °C (lit.)

density

-

density

-

bp

204 °C (lit.)

bp

-

bp

-

bp

-

form

liquid

form

liquid

form

solid

form

liquid

refractive index

n20/D 1.495 (lit.)

refractive index

n20/D 1.477

refractive index

-

refractive index

-

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Repr. 1B - Skin Corr. 1B - STOT RE 2

target_organs

Lungs

Storage Class

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

wgk_germany

WGK 1

flash_point_f

218.3 °F - closed cup

flash_point_c

103.5 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


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B Schulz et al.
Die Pharmazie, 41(2), 118-120 (1986-02-01)
The diffusion of 3-methylpyrazole through a synthetic polymer matrix and the effect of the solubility of the bioactive agent in polymers on the release behaviour of polymer combinations were studied. With increasing hydrophilicity of the polymer both the diffusion and
B Schulz et al.
Die Pharmazie, 43(1), 29-31 (1988-01-01)
The release behaviour of the antimicrobially active 3(5)-methylpyrazole from matrix systems prepared from maleic anhydride copolymers as well as from copolymers of maleic esters and maleic amides was studied. Under alkaline conditions erosion is the predominant release mechanism compared to
B Schulz et al.
Die Pharmazie, 40(8), 548-552 (1985-08-01)
The release of 3-methylpyrazole from monolithic polymer films into aqueous media has been studied. The diffusion of the active agent decreased with increasing of the content of acetate groups in reacetylated poly(vinyl alcohols) and with increasing of the ester lengths
E S Fiala et al.
Journal of cancer research and clinical oncology, 113(2), 145-150 (1987-01-01)
Using a hybrid ion-exchange reverse phase HPLC system, we found that F344 rat liver microsomes, in the presence of an NADPH-generating system, can metabolize methylazoxymethanol (MAM), a colon and liver carcinogen, to methanol and formic acid. This is in contrast
J Hauser et al.
The Journal of pharmacology and experimental therapeutics, 256(2), 592-598 (1991-02-01)
We tested the hypothesis that the gastrotoxicity of ethanol and other damaging agents is influenced through the modulation of alcohol dehydrogenase (ADH) by using either the ADH-inhibitor pyrazole or the noninhibitor derivatives of pyrazole. In time course experiments, the protection

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