Description

Cyclopentanecarboxaldehyde, 3-Oxo-2-(2-Propynyl)-, trans- (9Ci) is a specialized, high-purity chemical building block featuring a reactive aldehyde and alkyne functional groups on a cyclic ketone scaffold. This compound matters for its role as a key chiral intermediate in the synthesis of complex pharmaceutical molecules and advanced organic materials. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for constructing novel molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a critical chiral synthon in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with cyclopentane-based structures.
• Agrochemical Research: Used in the development of novel herbicides, fungicides, and plant growth regulators that require specific stereochemistry.
• Fine Chemical Synthesis: Acts as a versatile precursor for creating complex molecules in academic and industrial research laboratories.
• Material Science: Potential building block for specialty polymers and advanced organic materials due to its multiple reactive sites.
• Catalysis & Ligand Development: Employed in the research and development of new chiral catalysts and ligands for asymmetric synthesis.

Basic Information

Product Name	Cyclopentanecarboxaldehyde, 3-Oxo-2-(2-Propynyl)-, trans- (9Ci)
CAS No.	123101-00-8
Molecular Formula	C9H10O2
Molecular Weight	150.17 g/mol
Synonyms	trans-2-(Prop-2-yn-1-yl)-3-oxocyclopentanecarbaldehyde; 3-Oxo-2-(2-propynyl)cyclopentanecarboxaldehyde, trans-; (1R,2S)-2-(Prop-2-yn-1-yl)-3-oxocyclopentanecarbaldehyde; (1S,2R)-2-(Prop-2-yn-1-yl)-3-oxocyclopentanecarbaldehyde; 2-(Prop-2-ynyl)-3-oxocyclopentanecarboxaldehyde; 3-Oxo-2-prop-2-ynylcyclopentanecarbaldehyde
EINECS	Contact for details

Quality Control

Our Cyclopentanecarboxaldehyde, 3-Oxo-2-(2-Propynyl)-, trans- (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity analysis, to ensure it meets the high standards required for advanced synthetic applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee batch-to-batch consistency and traceability.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) in a cool, dry, and well-ventilated area. This material is easily oxidized and light-sensitive; prolonged exposure to air or light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee (trans-isomer)
Water Content (KF)	≤ 0.5%

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