Description

Cyclobutanecarboxylic Acid, 1-Formyl-, Methyl Ester (9Ci) is a specialized organic ester building block with a unique fused ring structure. This compound matters as a high-value intermediate for synthesizing complex molecules in advanced pharmaceutical and agrochemical research. It is primarily needed by R&D chemists and process development scientists working on novel active ingredients, fragrances, and functional materials. The product is supplied with a guaranteed CAS No. 155380-49-7 for precise identification and regulatory compliance.

Application

• Pharmaceutical Intermediate: Key synthon for the construction of novel drug candidates, particularly those containing constrained cyclobutane rings.
• Agrochemical Synthesis: Used in the research and development of new-generation pesticides and herbicides requiring specific steric and electronic properties.
• Organic Synthesis Building Block: Serves as a versatile precursor for further chemical transformations, including reductions, amidations, and cross-coupling reactions.
• Fragrance & Flavor Chemistry: Potential intermediate for creating unique macrocyclic or musky scent molecules due to its structural features.
• Material Science Research: Investigated as a monomer or cross-linking agent for developing polymers with tailored thermal and mechanical properties.
• Academic & Institutional Research: Utilized in methodological studies and the exploration of new synthetic pathways in organic chemistry.

Basic Information

Product Name	Cyclobutanecarboxylic Acid, 1-Formyl-, Methyl Ester (9Ci)
CAS No.	155380-49-7
Molecular Formula	C7H10O3
Molecular Weight	142.15 g/mol
Synonyms	Methyl 1-formylcyclobutanecarboxylate; 1-Formylcyclobutanecarboxylic Acid Methyl Ester; Cyclobutanecarboxylic acid, 1-formyl-, methyl ester; Methyl 1-formylcyclobutane-1-carboxylate
EINECS	Contact for details

Quality Control

Every batch of Cyclobutanecarboxylic Acid, 1-Formyl-, Methyl Ester (9Ci) is produced and tested under strict quality management protocols. We ensure compliance with relevant industry standards for fine chemical intermediates. Comprehensive analytical testing, including GC/HPLC for purity and identity confirmation (IR, NMR), is performed. A Certificate of Analysis (COA) detailing all specifications and results is provided with each shipment to guarantee traceability and consistency for your critical R&D and scale-up processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and organic solvents. Recommended storage temperature is 2-8°C for long-term stability. Allow the container to reach room temperature before opening to prevent moisture condensation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0% (Area %)
Water Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.