Description

1H-Indene-5-Carboxaldehyde (9Ci) is a specialized aromatic aldehyde building block of significant interest in advanced organic synthesis. Its unique indene-based structure makes it a valuable precursor for constructing complex molecular architectures, particularly in pharmaceutical and materials science research. This high-purity intermediate is essential for chemists and R&D teams developing novel active pharmaceutical ingredients (APIs), functional dyes, and advanced organic electronic materials.

Application

• Pharmaceutical Intermediate: A key synthon for the research and development of novel drug candidates and active pharmaceutical ingredients (APIs).
• Organic Synthesis Building Block: Used in the construction of complex heterocyclic compounds, ligands, and functionalized organic molecules.
• Materials Science Research: Serves as a precursor in the development of organic semiconductors, conductive polymers, and non-linear optical (NLO) materials.
• Agrochemical Development: Employed in the synthesis of novel crop protection agents and specialty agrochemicals.
• Dye and Pigment Chemistry: Acts as an intermediate for synthesizing specialized dyes, pigments, and photoactive compounds.
• Academic and Industrial R&D: A critical reagent for methodological studies in organic chemistry and catalysis.

Basic Information

Product Name	1H-Indene-5-Carboxaldehyde (9Ci)
CAS No.	204584-99-6
Molecular Formula	C10H8O
Molecular Weight	144.17 g/mol
Synonyms	5-Indenecarboxaldehyde; 1H-Indene-5-carbaldehyde; 5-Formylindene; Indene-5-carboxaldehyde; 5-Carboxyaldehydeindene; 1H-Indene-5-carboxaldehyde (9CI); 204584-99-6 (CAS); 5-Indenecarbaldehyde
EINECS	Contact for details

Quality Control

Our 1H-Indene-5-Carboxaldehyde (9Ci) is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, GC, NMR, and FTIR, to confirm identity and purity. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting all critical quality parameters. We support custom synthesis and can tailor specifications to meet specific research or cGMP starting material requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This compound is easily oxidized and should be handled and stored under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
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.