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31230-17-8 - 3-Amino-5-methyl-1H-pyrazole, 97% - 5-Methyl-1H-pyrazol-3-amine - A11642 - Alfa Aesar

A11642 3-Amino-5-methyl-1H-pyrazole, 97%

CAS Number
31230-17-8
Synonyms
5-Methyl-1H-pyrazol-3-amine

Size Price ($) Quantity Availability
5g 24.84
25g 72.09
100g 203.90
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3-Amino-5-methyl-1H-pyrazole, 97%

MDL
MFCD00075180
EINECS
000-000-0

Chemical Properties

Formula
C4H7N3
Formula Weight
97.12
Melting point
42-47°
Boiling Point
212-213°/14mm
Flash Point
>110°(230°F)
Sensitivity
Air Sensitive
Solubility
Soluble in Dichloromethane and Methanol.

Applications

3-Amino-5-methyl-1H-pyrazole was employed as beta-sheet template to investigate its interaction with ferrocenoyl-dipeptides. It is also used in the synthesis of 4-aryl-3,7,7-trimethyl-2,4,6,7,8,9-hexahydropyrazolo[3,4-b]quinolin-5-ones. It can react with 4-Ethoxymethylene-2-phenyl-4H-oxazol-5-one to get N-(2-Methyl-7-oxo-4,7-dihydro-pyrazolo[1,5-a]pyrimidin-6-yl)-benzamide.

Notes

Air Sensitive. Store at -20°C. Store under dry inert gas away from oxidizing agents and air.

Literature References

P Saweczko; G D Enright; H B Kraatz. Interaction of ferrocenoyl-dipeptides with 3-aminopyrazole derivatives: beta-sheet models? A synthetic, spectroscopic, structural, and electrochemical study. Inorganic Chemistry.2001, 40 (17), 4409-4419.

Wei Wang; Klaus Weisz. Characterization of peptide-pyrazole interactions in solution by low-temperature NMR studies. Chemistry: A European Journal.2007, 13 (3), 854-861.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. Specific treatment (see label). Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Beilstein
1904
Harmonized Tariff Code
2933.19
TSCA
No

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