1-(3-Aminopropyl)-2-methyl-1H-imidazole
1-(3-Aminopropyl)-2-methyl-1H-imidazole (CAS 2258-21-1; C7H13N3; molar mass 139.20 g/mol) is a difunctional heterocyclic building block combining a primary aliphatic amine with a 2-methyl-substituted imidazole ring. Supplied as a liquid of around 96% assay, it is valued in organic and pharmaceutical synthesis and as a reactive intermediate and curing agent, where its amine and imidazole nitrogen atoms support N-functionalisation, coordination and epoxy cure chemistry. Tech Serve Solutions supplies it worldwide to research and industrial users.
- IUPAC
- 3-(2-Methyl-1H-imidazol-1-yl)propylamine
- Synonyms
- 1-(3-Aminopropyl)-2-methyl-1H-imidazole3-(2-Methyl-1H-imidazol-1-yl)propylamine3-(2-Methylimidazol-1-yl)propylamine2-Methyl-1-(3-aminopropyl)imidazole1-(3-Aminopropyl)-2-methylimidazoleCAS 2258-21-1

Heterocyclic building block
Serves as a C3-tethered imidazole building block in chemical synthesis, where the pendant primary amine offers a convenient handle for amide coupling, reductive amination, alkylation and the assembly of more complex molecules.
Pharmaceutical and agrochemical intermediate
Used as an intermediate in the preparation of imidazole-bearing candidate compounds and functional molecules. Specific routes depend on the customer's chemistry; we supply the material to defined assay rather than for any single named application.
Epoxy curing and accelerator chemistry
Aminopropyl-imidazoles of this type are employed as reactive hardeners and cure accelerators for epoxy resin systems, where the amine and imidazole nitrogens both participate in network formation.
Ligand and coordination chemistry
The imidazole ring and primary amine provide nitrogen donor sites, making the compound useful for preparing chelating ligands and metal complexes in coordination and catalysis research.
Surface and polymer functionalisation
The reactive amine terminus allows the imidazole group to be grafted onto polymers, resins and surfaces, introducing basic, coordinating functionality for materials and research applications.
| Molecular weight | 139.20 |
|---|---|
| Empirical formula | C7H13N3 |
| Assay | 96% |
| Density | 1.028 g/mL at 25 °C |
| Refractive index | n20/D 1.517 |


Hazard statements
- H302Harmful if swallowed
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Flash point | >110 °C / >230 °F |
|---|---|
| Transport (UN / ADR) | UN 2735PSN1 8 / PGII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | C |
| Risk statements (R) | 22-34 |
| Safety statements (S) | 26-36/37/39-45 |
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-Aminopropyl)-2-methyl-1H-imidazole used for?
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It is used mainly as a heterocyclic building block and reactive intermediate in organic and pharmaceutical synthesis, and in epoxy curing and coordination chemistry. Its primary amine and 2-methylimidazole ring give two reactive handles for coupling, functionalisation and metal binding.
What is the CAS number and molecular formula of 1-(3-Aminopropyl)-2-methyl-1H-imidazole?
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The CAS number is 2258-21-1 and the molecular formula is C7H13N3, with a molecular weight of 139.20 g/mol. The MDL number is MFCD00272462 and a common synonym is 3-(2-Methyl-1H-imidazol-1-yl)propylamine.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1-(3-Aminopropyl)-2-methyl-1H-imidazole as a research and technical grade liquid with a typical assay of around 96% (reported density 1.028 g/mL at 25 °C; refractive index n20/D 1.517). We do not represent it as USP, BP or EP pharmacopoeial grade. A certificate of analysis can be provided with each batch.
What are the safety and handling requirements for this compound?
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It is classified under GHS as Danger, with hazard statements H302 (harmful if swallowed) and H314 (causes severe skin burns and eye damage); pictograms GHS05 and GHS07 apply. Handle it as a corrosive: wear protective gloves, eye and face protection (P280), avoid contact, and on eye contact rinse cautiously with water and seek medical attention (P305+P351+P338, P310). Always consult the SDS before use.
How is 1-(3-Aminopropyl)-2-methyl-1H-imidazole packed, shipped and exported?
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As a corrosive liquid it is classified for transport under UN 2735, Class 8 (corrosive), Packing Group II, and is shipped in suitably approved, tightly closed packaging sized to order with full dangerous-goods documentation. Tech Serve Solutions exports worldwide by air and sea in line with applicable IATA, IMDG and ADR requirements.
How do I request a sample or quote?
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Contact Tech Serve Solutions with your required quantity, packaging and destination, and our team will respond with availability, lead time, specifications and documentation. Samples can be arranged for qualified evaluation, subject to dangerous-goods shipping requirements.
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