1,3,5-Trimethylpyrazole
1,3,5-Trimethylpyrazole (CAS: 1072-91-9), with the molecular formula C6H10N2 and a molecular weight of 110.16 g/mol, is a heterocyclic organic compound. It serves as a valuable building block in chemical synthesis, particularly within the realm of heterocyclic chemistry. Its structure makes it a useful intermediate for the development of more complex molecules for various research and development applications.
- Synonyms
- 1072-91-9C6H10N2

Organic Synthesis Intermediate
1,3,5-Trimethylpyrazole is employed as a versatile intermediate in the synthesis of various organic compounds. Its pyrazole ring structure offers a reactive scaffold for further chemical modifications.
Heterocyclic Chemistry Research
This compound is utilized in academic and industrial research settings focused on heterocyclic chemistry. It aids in the exploration of novel pyrazole derivatives and their potential properties.
Building Block for Complex Molecules
As a C6 building block, it can be incorporated into larger molecular frameworks. This is crucial for constructing target molecules in multi-step synthetic pathways.
| Molecular weight | 110.16 |
|---|---|
| Empirical formula | C6H10N2 |
| Assay | 97% |
| Melting point | 38-41 °C(lit.) |


Hazard statements
- H228Flammable solid
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Flash point | 40 °C / 104 °F |
| Transport (UN / ADR) | UN 1325 4.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 10-36/37/38 |
| Safety statements (S) | 16-26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 1,3,5-Trimethylpyrazole used for?
+
1,3,5-Trimethylpyrazole is primarily used as a building block and intermediate in organic synthesis, particularly in heterocyclic chemistry research.
What is the CAS number and formula for 1,3,5-Trimethylpyrazole?
+
The CAS number is 1072-91-9 and the empirical formula is C6H10N2.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 1,3,5-Trimethylpyrazole with an assay of 97%. This is a research or technical grade material and TSS does not represent it as USP, BP, EP, or other pharmacopoeial grades.
How should 1,3,5-Trimethylpyrazole be handled safely?
+
1,3,5-Trimethylpyrazole is a flammable solid (H228) and an irritant (H315, H319, H335). Handle with appropriate personal protective equipment, including eyeshields and gloves, in a well-ventilated area. Avoid sources of ignition. Refer to the safety data sheet for comprehensive handling information.
How is 1,3,5-Trimethylpyrazole packed and exported?
+
1,3,5-Trimethylpyrazole is carefully packed according to international shipping regulations for hazardous materials (UN 1325, 4.1/PGIII) and is available for global export by Tech Serve Solutions.
How can I request a sample or quote for 1,3,5-Trimethylpyrazole?
+
To request a sample or a quote for 1,3,5-Trimethylpyrazole, please contact our sales team through the website or by phone.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis