Description

1,2-Cyclopropanedicarboxaldehyde, 1-(Methylthio)-, (1S-Cis)- (9Ci) is a specialized chiral building block of significant interest in advanced organic synthesis. Its unique cis-fused cyclopropane ring system functionalized with aldehyde and methylthio groups makes it a valuable precursor for constructing complex, stereodefined molecular architectures. This high-purity intermediate is primarily utilized by research and development chemists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and fine chemicals. The compound is supplied with CAS number 125559-60-6.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the research and development of novel active pharmaceutical ingredients (APIs), particularly for constructing constrained ring systems.
• Agrochemical Synthesis: Used in the creation of advanced crop protection agents and pesticides where the cyclopropane motif can enhance biological activity and stability.
• Asymmetric Catalysis Research: Acts as a substrate or ligand precursor in the development of new catalytic systems for stereoselective transformations.
• Fine Chemical Production: Employed in the multistep synthesis of complex fragrance molecules, flavors, and other high-value specialty chemicals.
• Material Science Research: Investigated as a monomer or cross-linking agent for creating polymers with unique mechanical or optical properties derived from the strained ring.
• Academic & Institutional R&D: Utilized in university and government laboratories for methodological studies in organic chemistry and total synthesis projects.

Basic Information

Product Name	1,2-Cyclopropanedicarboxaldehyde, 1-(Methylthio)-, (1S-Cis)- (9Ci)
CAS No.	125559-60-6
Molecular Formula	C7H8O2S
Molecular Weight	156.20 g/mol
Synonyms	(1S,2S)-1-(Methylthio)-1,2-cyclopropanedicarboxaldehyde; (1S-cis)-1-(Methylthio)-1,2-cyclopropanedicarboxaldehyde; 1-(Methylthio)-1,2-cyclopropanedicarboxaldehyde, (1S-cis)-; cis-1-(Methylthio)cyclopropane-1,2-dicarboxaldehyde; (1S,2S)-1-(Methylsulfanyl)cyclopropane-1,2-dicarbaldehyde
EINECS	Contact for details

Quality Control

Our 1,2-Cyclopropanedicarboxaldehyde, 1-(Methylthio)-, (1S-Cis)- (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity assessment by HPLC, to ensure it meets the high standards required for research and process development. Certificates of Analysis (COA) detailing identity, purity, and chiral excess are provided with every shipment to guarantee traceability and consistency for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at 2-8°C in a cool, dry, well-ventilated place. Due to its sensitivity to oxidation, the container should be kept sealed and only opened under controlled conditions. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% ee
Water Content (KF)	≤ 0.5%

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