Description

3-Quinolinecarboxaldehyde, 4A,8A-Dihydro- (9Ci) is a specialized heterocyclic aldehyde building block of significant interest in advanced organic synthesis. This compound matters as a versatile precursor for constructing complex nitrogen-containing molecular architectures, particularly in pharmaceutical and agrochemical research. It is primarily needed by R&D chemists and process development scientists working on novel active ingredients, where its unique dihydroquinoline scaffold offers a strategic handle for further functionalization.

Application

• Pharmaceutical Intermediate: A key synthon for the development of novel drug candidates, particularly those targeting central nervous system (CNS) disorders or infectious diseases.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, leveraging its heterocyclic core for bioactivity.
• Ligand and Catalyst Development: Serves as a precursor for creating novel nitrogen-donor ligands used in homogeneous catalysis and metal-organic frameworks (MOFs).
• Material Science Research: Employed in the synthesis of organic semiconductors, dyes, and photoactive materials due to its conjugated system.
• Academic & Industrial R&D: A valuable tool for methodological studies in organic chemistry, including new C-C and C-N bond-forming reactions.
• Fine Chemical Production: Incorporated into the multi-step synthesis of complex, high-value specialty chemicals for various industrial applications.

Basic Information

Product Name	3-Quinolinecarboxaldehyde, 4A,8A-Dihydro- (9Ci)
CAS No.	408535-90-0
Molecular Formula	C10H9NO
Molecular Weight	159.18 g/mol
Synonyms	4a,8a-Dihydroquinoline-3-carboxaldehyde; 4a,8a-Dihydro-3-quinolinecarboxaldehyde; 3-Formyl-4a,8a-dihydroquinoline; 1,2,3,4-Tetrahydroquinoline-3-carboxaldehyde (tautomer); Quinoline-3-carboxaldehyde, 4a,8a-dihydro-; 3-Quinolinecarboxaldehyde, 4a,8a-dihydro-; 408535-90-0 (CAS)
EINECS	Contact for details

Quality Control

Our 3-Quinolinecarboxaldehyde, 4A,8A-Dihydro- (9Ci) is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to verify identity and purity. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment. Our quality system is designed to support cGMP and ISO standards for research and development applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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