Methyl 3-aminocrotonate
Methyl 3-aminocrotonate (CAS: 14205-39-1) is an organic compound with the linear formula CH₃C(NH₂)=CHCOOCH₃ and a molecular weight of 115.13 g/mol. This versatile chemical building block, typically supplied as crystals with a 97% assay from Lonza quality, is frequently employed in organic synthesis. Its structure, featuring both an enamine and an ester functionality, makes it a valuable intermediate for constructing more complex molecules in research and development settings.
- IUPAC
- Methyl 3-amino-2-butenoate
- Synonyms
- Methyl 3-amino-2-butenoate

Organic Synthesis Intermediate
Methyl 3-aminocrotonate serves as a key intermediate in the synthesis of various heterocyclic compounds and other complex organic molecules. Its enamine and ester functionalities allow for diverse chemical transformations.
Building Block for Specialty Chemicals
This compound is utilised as a fundamental building block in the development of specialty chemicals. Its reactivity profile supports its incorporation into diverse synthetic pathways.
Research and Development
Primarily used in R&D laboratories, Methyl 3-aminocrotonate aids chemists in exploring new synthetic routes and creating novel chemical entities for various applications.
| Molecular weight | 115.13 |
|---|---|
| Linear formula | CH3C(NH2)=CHCOOCH3 |
| Assay | 97% |
| Grade | Lonza quality |
| Form | crystals |
| Melting point | 81-83 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- H319Causes serious eye irritation
- H330Fatal if inhaled
Precautionary statements
- P260Do not breathe dust, fume, gas, mist, vapours or spray
- P284Wear respiratory protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Flash point | 91 °C / 195.8 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Mfr No | Lonza Ltd |
|---|
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 Methyl 3-aminocrotonate used for?
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Methyl 3-aminocrotonate is primarily used as a versatile building block and intermediate in organic synthesis, particularly for creating complex molecules and heterocyclic compounds in research and development.
What is the CAS number and chemical formula for Methyl 3-aminocrotonate?
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The CAS number for Methyl 3-aminocrotonate is 14205-39-1 and its linear formula is CH₃C(NH₂)=CHCOOCH₃.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Methyl 3-aminocrotonate at a 97% assay with Lonza quality. We do not represent this product as USP, BP, or EP grade.
What are the main hazards associated with Methyl 3-aminocrotonate?
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Methyl 3-aminocrotonate is classified as dangerous. It is harmful if swallowed (H302), causes serious eye irritation (H319), and is fatal if inhaled (H330). Appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, face shields, and gloves, should be used.
How is Methyl 3-aminocrotonate packed and shipped globally?
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Tech Serve Solutions expertly packs and exports fine chemicals like Methyl 3-aminocrotonate globally, adhering to stringent safety and regulatory standards for international transport.
How can I request a sample or quote for Methyl 3-aminocrotonate?
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To request a sample or a quote for Methyl 3-aminocrotonate, please contact our sales team through the website or by calling our office.
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