Description

Cyclopropanecarboxaldehyde, 2-Butyl-1-Methyl-, (1R,2R)-Rel- (9Ci) CAS NO 405873-93-0 is a high-purity, chiral cyclopropane derivative that serves as a critical advanced intermediate in sophisticated organic synthesis. Its value lies in the unique structural and stereochemical properties of the cyclopropane ring, which are leveraged to modulate the biological activity and physicochemical characteristics of target molecules. This compound is primarily needed by research and development teams in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and complex natural product analogs.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of chiral drug candidates, particularly those targeting central nervous system (CNS) disorders, antiviral agents, and anti-inflammatory compounds.
• Agrochemical Synthesis: Used in the research and development of novel pesticides and herbicides, where the cyclopropane moiety can enhance stability and bioactivity.
• Ligand and Catalyst Development: Serves as a precursor for chiral ligands and organocatalysts used in asymmetric synthesis to control stereoselectivity.
• Material Science Research: Investigated as a monomer or additive for creating polymers with specific thermal or mechanical properties due to the ring strain of the cyclopropane group.
• Flavor and Fragrance Industry: Potential intermediate for synthesizing complex, naturally-derived aroma chemicals with unique olfactory profiles.
• Academic and R&D Laboratories: Essential for methodological studies in organic chemistry, including new cyclopropanation reactions and stereochemistry research.

Basic Information

Item	Detail
Product Name	Cyclopropanecarboxaldehyde, 2-Butyl-1-Methyl-, (1R,2R)-Rel- (9Ci)
CAS No.	405873-93-0
Molecular Formula	C9H16O
Molecular Weight	140.22 g/mol
Synonyms	(1R,2R)-2-Butyl-1-methylcyclopropanecarboxaldehyde; rel-(1R,2R)-2-Butyl-1-methylcyclopropanecarbaldehyde; (1R,2R)-rel-2-Butyl-1-methylcyclopropanecarboxaldehyde; 2-Butyl-1-methylcyclopropanecarboxaldehyde (rel-(1R,2R)-); Chiral 2-Butyl-1-methylcyclopropanecarbaldehyde; Cyclopropanecarboxaldehyde, 2-butyl-1-methyl-, (1R,2R)-rel-; (1R,2R)-2-Butyl-1-methyl-1-cyclopropanecarboxaldehyde
EINECS	Contact for details

Quality Control

Our Cyclopropanecarboxaldehyde, 2-Butyl-1-Methyl-, (1R,2R)-Rel- (9Ci) is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including chiral purity analysis by HPLC and GC, to ensure high chemical and stereochemical purity for sensitive synthesis applications. Certificates of Analysis (COA) with detailed chromatographic data are provided to guarantee traceability and batch-to-batch consistency, supporting your cGMP or ISO-compliant workflows.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. 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)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee (1R,2R)
Water Content (KF)	≤ 0.5%

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