3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine (CAS 91331-68-9, C11H13N3) is a heterocyclic amine building block with a molecular weight of 187.24 g/mol. It is commonly employed in organic synthesis, particularly for the construction of more complex molecules within the pharmaceutical and chemical research sectors. This compound serves as a valuable intermediate, contributing to the development of novel chemical entities.
- IUPAC
- 3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-ylamine,5-Methyl-2-o-tolyl-2H-pyrazol-3-ylamine
- Synonyms
- 5-Methyl-2-o-tolyl-2H-pyrazol-3-ylamine

Organic Synthesis Intermediate
Utilised as a key building block in multi-step organic synthesis pathways. Its pyrazole amine structure facilitates diverse chemical transformations for creating complex organic molecules.
Pharmaceutical Research
Serves as a precursor or intermediate in the research and development of new pharmaceutical compounds. Its heterocyclic nature is of interest for medicinal chemistry applications.
Chemical Building Block
A versatile reagent for chemists engaged in the synthesis of novel heterocyclic compounds. Applicable in academic and industrial research laboratories for developing new chemical entities.
| Molecular weight | 187.24 |
|---|---|
| Empirical formula | C11H13N3 |
| Assay | 98% |
| Melting point | 85-89 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36/39 |
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 3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine used for?
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This compound is primarily used as a building block and intermediate in organic synthesis and pharmaceutical research for the development of novel chemical entities.
What are the CAS number and chemical formula for this product?
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The CAS number is 91331-68-9 and the empirical formula is C11H13N3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound with an assay of 98%. We do not represent this product as USP, BP, EP, or other pharmacopoeial grades.
How should 3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine be handled?
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Handle with appropriate personal protective equipment, including a dust mask (type N95 US recommended), eyeshields, and gloves. Avoid breathing dust. Ensure adequate ventilation in the work area. Refer to the safety data sheet for comprehensive handling information.
Is this chemical exported by Tech Serve Solutions?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including this compound.
How can I request a sample or quote for 3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine?
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Please contact our sales team via the website or direct email to request a sample or obtain a quotation.
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