Description

1H-Indene, 3-Ethynyl- (9Ci) is a specialized organic building block featuring an indene core functionalized with an ethynyl group, offering unique reactivity for advanced synthetic chemistry. This compound is valued for its role as a key intermediate in the development of complex molecular architectures, including pharmaceuticals, agrochemicals, and functional materials. It is primarily sought by research institutions and industrial R&D departments focused on organic synthesis, medicinal chemistry, and material science.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of novel active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Research: Used in the development of new pesticides, herbicides, and plant growth regulators.
• Material Science: Acts as a precursor for organic semiconductors, conductive polymers, and advanced organic frameworks (MOFs/COFs).
• Organic Synthesis: A versatile reagent for cycloaddition reactions, cross-coupling, and the construction of polycyclic aromatic systems.
• Ligand & Catalyst Development: Employed in the design of novel ligands for transition metal catalysis and organocatalysts.
• Fine Chemical Production: Used in the multi-step synthesis of complex dyes, pigments, and specialty chemicals.

Basic Information

Product Name	1H-Indene, 3-Ethynyl- (9Ci)
CAS No.	134225-48-2
Molecular Formula	C11H8
Molecular Weight	140.18 g/mol
Synonyms	3-Ethynyl-1H-indene; 3-Ethynylindene; 1H-Indene, 3-ethynyl-; 3-Ethynylindene; Ethynylindene; Indene, 3-ethynyl-; 134225-48-2 (CAS); 3-Ethynyl-1H-indene (IUPAC)
EINECS	Contact for details

Quality Control

Our 1H-Indene, 3-Ethynyl- (9Ci) is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. A Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee compliance with your research and development specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This compound should be handled under an inert atmosphere to prevent degradation and stored away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95%
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.