Description

3-Cyclopropyl-3-Oxopropionic Acid Methyl Ester (CAS No. 32249-35-7) is a high-purity organic ester compound with the molecular formula C₇H₁₀O₃. This versatile chemical intermediate is characterized by its cyclopropyl and oxopropionate functional groups, making it valuable for synthetic organic chemistry applications. The product is supplied as a clear to pale yellow liquid with ≥95% purity (GC), ensuring consistency for research and industrial use. Its IUPAC name is methyl 3-cyclopropyl-3-oxopropanoate, and it is also known by several synonyms including Methyl 3-cyclopropyl-3-oxopropionate. Proper storage at 2-8°C under inert atmosphere is recommended to maintain stability. This compound is particularly useful in pharmaceutical synthesis and material science research due to its reactive keto-ester functionality.

Properties

• CAS Number: 32249-35-7
• Complexity: 158
• IUPAC Name: methyl 3-cyclopropyl-3-oxo-propanoate
• InChI: InChI=1S/C7H10O3/c1-10-7(9)4-6(8)5-2-3-5/h5H,2-4H2,1H3
• InChI Key: RIJWDPRXCXJDPK-UHFFFAOYSA-N
• Exact Mass: 142.062994177
• Molecular Formula: C7H10O3
• Molecular Weight: 142.15
• SMILES: COC(=O)CC(=O)C1CC1
• Topological: 43.4
• Monoisotopic Mass: 142.062994177
• Synonyms: 3-Cyclopropyl-3-oxopropionic acid methyl ester, 608-722-3, Methyl 3-cyclopropyl-3-oxopropanoate, 32249-35-7, METHYL 3-CYCLOPROPYL-3-OXOPROPIONATE, 3-cyclopropyl-3-oxo-propionic acid methyl ester, 3-cyclopropyl-3-oxopropanoic acid methyl ester, methyl-3-cyclopropyl-3-oxopropanoate, MFCD00274090, 3-Cyclopropyl-3-oxopropanoic-d5AcidMethylEster, Methyl 3-Cyclopropyl-3-oxopropionate; Methyl 2-(Cyclopropylcarbonyl)acetate; beta-Oxo-cyclopropanepropanoic Acid Methyl Ester;, methyl3-cyclopropyl-3-oxopropanoate, Methyl 2-(Cyclopropylcarbonyl)acetate, SCHEMBL221809, Methyl-2-cyclopropanoyl-acetate, DTXSID00435934, AC-300, methyl-3-cyclopropyl-3-oxopropionate, SBB086231, methyl 3-cyclopropyl-3-oxopropionoate, AKOS005255543, methyl 3-cyclopropyl-3-oxo-propionate, CS-W007911, GS-4230, PB26020, Methyl 3-(cyclopropyl)-3-oxopropanoate, SY001027, DB-014273, M2277, EN300-119201, F0001-0961

Application

This compound serves as a key intermediate in the synthesis of more complex organic molecules, particularly in pharmaceutical research where the cyclopropyl group is pharmacologically significant. It is utilized in the preparation of heterocyclic compounds and as a building block for active pharmaceutical ingredients (APIs). Researchers also employ this ester in materials science for developing novel polymers with specific thermal and mechanical properties. The reactive β-keto ester moiety makes it valuable for condensation reactions and cyclization processes.

Safety and Hazards

GHS Hazard Statements

• H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
• H312 (66.7%): Harmful in contact with skin [Warning Acute toxicity, dermal]
• H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (100%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
• H412 (100%): Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

Precautionary Statements

• P261, P264, P264+P265, P270, P271, P273, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

• Acute Tox. 4 (100%)
• Acute Tox. 4 (66.7%)
• Skin Irrit. 2 (100%)
• Eye Irrit. 2 (100%)
• STOT SE 3 (100%)
• Aquatic Chronic 3 (100%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.