CAS 67-51-6 White To Off-white Crystalline Powder 3,5-Dimethylpyrazole CAS NO.67-51-6

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CAS 67-51-6 White To Off-white Crystalline Powder 3,5-Dimethylpyrazole

 

Product Description

3,5-Dimethylpyrazole Description

3,5-Dimethylpyrazole is an organic heterocyclic compound with a five-membered pyrazole ring substituted with two methyl groups at positions 3 and 5. It is a colorless or pale yellow crystalline solid with a slight odor. The compound is widely used as a chemical intermediate in the synthesis of pharmaceuticals, agrochemicals, and other specialty chemicals. Additionally, it is recognized for its role as a nitrification inhibitor in agriculture to improve nitrogen use efficiency in soils.

 

Technical Data Table

Property	Description
Chemical Name	3,5-Dimethylpyrazole
Chemical Formula	C5H8N2
CAS Number	67-51-6
Molecular Weight	96.13 g/mol
Appearance	Colorless to pale yellow crystalline solid
Odor	Slight odor
Melting Point	106–109°C
Boiling Point	~204°C (at 760 mmHg)
Solubility	Soluble in water, ethanol, and most organic solvents
Density	~1.04 g/cm³
pKa	~2.6 (acidic hydrogen on the pyrazole ring)
Stability	Stable under normal conditions; hygroscopic
Storage	Store in a cool, dry place, tightly sealed, and away from strong oxidizers
Shelf Life	2 years under proper storage conditions

 

Key Features

1. Nitrification Inhibition:

   • Suppresses the activity of nitrifying bacteria in soil, reducing the conversion of ammonium to nitrate and slowing nitrogen loss from leaching or denitrification.

2. Versatility:

   • Serves as a versatile intermediate in the production of pharmaceuticals, agrochemicals, and other fine chemicals.

3. Solubility:

   • Exhibits good solubility in both water and organic solvents, allowing for a wide range of applications.

4. Thermal Stability:

   • Stable at room temperature with minimal risk of decomposition under normal conditions.

5. Environmentally Relevant:

   • Reduces nitrogen loss in agriculture, contributing to sustainable farming practices.

 

Applications

1. Agriculture

• Nitrification Inhibitor:
  • Used in fertilizers to improve nitrogen use efficiency by slowing down the conversion of ammonium to nitrate.
  • Reduces nitrogen losses through leaching and greenhouse gas emissions (e.g., nitrous oxide).
  • Commonly combined with urea-based fertilizers or ammonium-based fertilizers.

2. Pharmaceuticals

• Chemical Intermediate:
  • Used in the synthesis of active pharmaceutical ingredients (APIs) and heterocyclic compounds.

3. Agrochemicals

• Pesticides and Herbicides:
  • Serves as a building block in the formulation of crop protection chemicals.

4. Chemical Synthesis

• Catalysis:
  • Acts as a ligand in metal-catalyzed reactions.
• Intermediate:
  • Used for synthesizing dyes, polymers, and specialty chemicals.

5. Industrial Applications

• Corrosion Inhibitors:
  • Used in formulations to protect metals from corrosion in industrial processes.

 

Packaging	1kg-15kg packing	2 PE bag inside + 1 foil bag outside in carton
	25kg-50kg packing	2 PE bag inside + 1 foil bag outside in drum
	Other packing	Customized packing
Drum Size	D38cm*H60cm or customized, 25 kg/ drum
Shipping	1-50kg	International Express	Fast and convenient	Door to Door
	50-500kg	Air Transportation	Fast and cheap	To Air Port
	Above 500kg	Sea Transportation	Cheap and convenient	To Port

 

 

 

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