Description

Cyclopropanecarboxylic Acid, 2-Formyl-, Methyl Ester, (1S,2R)- (9Ci) is a high-purity chiral building block of significant interest in advanced organic synthesis. Its unique cyclopropane ring fused with a formyl ester functionality makes it a valuable precursor for constructing complex, stereodefined molecular architectures. This compound is essential for research and development chemists in the pharmaceutical and agrochemical industries, where it is used to create novel active ingredients with specific three-dimensional properties.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of novel drug candidates, particularly in developing protease inhibitors, receptor modulators, and other small-molecule therapeutics.
• Agrochemical Research: Used in constructing advanced intermediates for new generations of herbicides, fungicides, and insecticides with improved efficacy and selectivity.
• Asymmetric Synthesis: Serves as a starting material or intermediate in catalytic asymmetric reactions to introduce the cyclopropane moiety with high enantiomeric excess.
• Material Science Precursor: Potential use in the development of specialty polymers and advanced materials with unique structural properties derived from the strained cyclopropane ring.
• Chemical Biology Probes: Utilized in the design and synthesis of molecular probes for studying enzyme mechanisms and biological pathways.

Basic Information

Product Name	Cyclopropanecarboxylic Acid, 2-Formyl-, Methyl Ester, (1S,2R)- (9Ci)
CAS No.	159000-41-6
Molecular Formula	C7H10O3
Molecular Weight	142.15 g/mol
Synonyms	(1S,2R)-2-Formylcyclopropanecarboxylic acid methyl ester; Methyl (1S,2R)-2-formylcyclopropanecarboxylate; (1S,2R)-Methyl 2-formylcyclopropanecarboxylate; (1S,2R)-2-Formylcyclopropanecarboxylic Acid Methyl Ester; (1S,2R)-rel-2-Formylcyclopropanecarboxylic Acid Methyl Ester
EINECS	Contact for details

Quality Control

Every batch of Cyclopropanecarboxylic Acid, 2-Formyl-, Methyl Ester, (1S,2R)- (9Ci) is manufactured under strict quality management systems. We provide comprehensive analytical documentation, including Certificates of Analysis (COA) with detailed results for identity, purity (typically by HPLC or GC), chiral purity, and impurity profiles. Our quality commitment ensures the material meets the stringent requirements for research and cGMP-grade pharmaceutical development.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry place at controlled room temperature (15-25°C). Due to its sensitivity to oxidation, prolonged exposure to air should be avoided.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC/GC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee (1S,2R)
Water Content (KF)	≤ 0.5%

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