Description

5H-Indene-2-Carboxaldehyde (9Ci) CAS NO 724765-42-8 is a specialized aromatic aldehyde building block of significant interest in advanced organic synthesis. Its unique indene-derived structure makes it a valuable precursor for constructing complex molecular architectures, particularly in the development of novel heterocyclic compounds and functional materials. This high-purity intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries seeking to innovate within fine chemical and electronic applications.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of new active pharmaceutical ingredients (APIs), particularly for compounds with indene-based scaffolds.
• Agrochemical Synthesis: Used in the creation of novel herbicides, fungicides, and plant growth regulators that require specific aromatic aldehyde functionalities.
• Material Science Research: Acts as a precursor for organic semiconductors, liquid crystals, and photoresist materials due to its conjugated system and reactive aldehyde group.
• Ligand and Catalyst Development: Employed in the synthesis of specialized ligands for metal-organic frameworks (MOFs) and asymmetric catalysis.
• Dye and Pigment Chemistry: Utilized as a starting material for synthesizing novel organic dyes and pigments with specific color and stability properties.
• Academic and R&D Laboratories: A critical reagent for methodological studies in organic chemistry, including novel cyclization and cross-coupling reactions.

Basic Information

Product Name	5H-Indene-2-Carboxaldehyde (9Ci)
CAS No.	724765-42-8
Molecular Formula	C10H8O
Molecular Weight	144.17 g/mol
Synonyms	5H-Indene-2-carbaldehyde; 2-Formyl-5H-indene; 5H-Indene-2-carboxaldehyde; Indene-2-carboxaldehyde, 5H-; 724765-42-8; 2-Indenecarboxaldehyde, 5H-; 5H-2-Indenecarboxaldehyde
EINECS	Contact for details

Quality Control

Our 5H-Indene-2-Carboxaldehyde is manufactured under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as identity, assay, and impurity profile. We are committed to meeting the stringent requirements of research and industrial applications, with quality systems designed to support regulatory compliance.

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. Keep away from heat, sparks, and open flame. Due to its sensitivity, allow the container to reach room temperature before opening to minimize moisture ingress.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.