Ethyl 1-aminocyclopropanecarboxylate hydrochloride
Ethyl 1-aminocyclopropanecarboxylate hydrochloride (CAS: 42303-42-4) is a cyclopropane derivative with the molecular formula C6H12ClNO2 and a molecular weight of 165.62 g/mol. This compound serves as a valuable building block in organic synthesis. It finds application in the chemical and pharmaceutical industries, particularly within peptide chemistry and the development of unnatural amino acid derivatives for research purposes.
- IUPAC
- 1-Aminocyclopropyl carboxylic acid ethyl ester hydrochloride
- Synonyms
- 1-Aminocyclopropyl carboxylic acid ethyl ester hydrochloride

Chemical Synthesis Intermediate
This compound is utilised as a key intermediate in the synthesis of complex organic molecules. Its unique cyclopropane structure allows for the introduction of specific functionalities in target compounds.
Peptide Chemistry
As an unnatural amino acid derivative, it is employed in the construction of modified peptides. This enables the exploration of novel peptide structures with altered biological activities or stability.
Research and Development
Ethyl 1-aminocyclopropanecarboxylate hydrochloride is used in chemical biology and research laboratories to synthesise novel compounds for scientific investigation and drug discovery.
| Molecular weight | 165.62 |
|---|---|
| Empirical formula | C6H12ClNO2 |
| Assay | 97% |
| Melting point | 114-120 °C |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 7/9-22-24/25-26-36/37-38 |
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 Ethyl 1-aminocyclopropanecarboxylate hydrochloride used for?
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Ethyl 1-aminocyclopropanecarboxylate hydrochloride is primarily used as an intermediate in chemical synthesis, particularly in peptide chemistry and the development of unnatural amino acid derivatives for research purposes.
What is the CAS number and formula for Ethyl 1-aminocyclopropanecarboxylate hydrochloride?
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The CAS number for Ethyl 1-aminocyclopropanecarboxylate hydrochloride is 42303-42-4, and its empirical formula (Hill notation) is C6H12ClNO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ethyl 1-aminocyclopropanecarboxylate hydrochloride with an assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
What are the safety considerations when handling this product?
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Ethyl 1-aminocyclopropanecarboxylate hydrochloride is classified with a Warning signal word. It is harmful if swallowed (H302) and causes skin irritation (H315). Handle with appropriate personal protective equipment in a well-ventilated area.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions offers secure and compliant packaging suitable for international shipment. Our experienced logistics team ensures efficient export procedures for this chemical.
How can I request a quote or sample?
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To request a quote or a sample of Ethyl 1-aminocyclopropanecarboxylate hydrochloride, please contact our sales team through the website or by phone.
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