1,5-二甲基吡唑-3-胺

1,5-二甲基吡唑-3-胺 - Names and Identifiers

Name	3-Amino-1,5-dimethylpyrazole
Synonyms	1,5-dimethylpyrazol-3-amine 1,5-dimethyl-3-pyrazolamine 3-Amino-1,5-dimethylpyrazole 3-AMINO-1,5-DIMETHYLPYRAZOLE (1,5-dimethylpyrazol-3-yl)amine 1,5-dimethyl-1H-pyrazol-3-amine 3-Amino-1,5-dimethyl-1H-pyrazole 1,5-Dimethyl-1H-pyrazol-3-ylamine 1,5-Dimethyl-1H-Pyrazol-3-Ylamine(WX609107)
CAS	35100-92-6
InChI	InChI=1/C5H9N3/c1-4-3-5(6)7-8(4)2/h3H,1-2H3,(H2,6,7)

1,5-二甲基吡唑-3-胺 - Physico-chemical Properties

Molecular Formula	C5H9N3
Molar Mass	111.15
Density	1.17
Melting Point	65-68 ºC
Boling Point	235 ºC
Flash Point	96 ºC
Vapor Presure	0.0521mmHg at 25°C
pKa	4.17±0.11(Predicted)
Storage Condition	2-8°C(protect from light)
Refractive Index	1.581

1,5-二甲基吡唑-3-胺 - Risk and Safety

Risk Codes	20/21/22 - Harmful by inhalation, in contact with skin and if swallowed.
Safety Description	S3/9 - S36/37 - Wear suitable protective clothing and gloves.
HS Code	29331990
Hazard Class	IRRITANT

1,5-二甲基吡唑-3-胺 - Introduction

3-Amino-1,5-dimethylpyrazole is an organic compound with the chemical formula C5H8N2. It is a colorless crystal or powder with a special nitrogen heterocyclic structure. The following is a detailed description of the nature, use, preparation and safety information of 3-Amino-1, 5-dimenthylpyrazole:

Nature:
1. Appearance: colorless crystal or powder.
2. Solubility: Soluble in some organic solvents, such as ethanol, chloroform, etc.
3. melting point: about 166-169 degrees Celsius.
4. Boiling point: about 311 degrees Celsius.
5. specific gravity: about 1.07-1.1.

Use:
1. 3-Amino-1,5-dimethylpyrazole is an important intermediate compound, which is commonly used in organic synthesis and drug synthesis.
2. It can be used as a raw material for organic dyes, light stabilizers, antibacterial agents, etc.

Preparation Method:
3-Amino-1,5-dimethylpyrazole can be synthesized:
1.2,4-dimethylpyridine is reacted with malonic anhydride to obtain 2,4-dimethyl -3-aminopyridine, which is then dehydrated to form 3-Amino-1,5-dimethylpyrazole.
2.2,4-dimethyl -3-formyl pyridine is prepared by the reaction of 2,4-lutidine and formyl chloride, and 3-Amino-1,5-dimethylpyrazole is prepared by decarbonylation.

Safety Information:
1. 3-Amino-1,5-dimethylpyrazole is relatively stable at room temperature, but contact with open flames and high temperature conditions should be avoided.
2. When handling the compound, wear appropriate protective gloves and glasses to avoid skin and eye contact.
3. When using in the laboratory, follow the correct operating procedures and operate in a well-ventilated place.
4. 3-Amino-1,5-dimethylpyrazole should be stored in a sealed, dry and cool place, away from oxidants and fire sources.

Last Update：2024-04-09 02:00:45