Description

5-Chlorobenzo[B]Phosphindole is a specialized organophosphorus heterocyclic compound that serves as a high-value synthetic intermediate. Its unique fused-ring structure containing phosphorus makes it a critical building block for advanced material science and pharmaceutical research. This compound is primarily sought after by R&D chemists and process development scientists in the fields of organic electronics, ligand synthesis for catalysis, and medicinal chemistry for novel drug discovery.

Application

• Phosphorus-Containing Ligand Precursor: A key intermediate for synthesizing novel phosphine and phosphindole-based ligands used in homogeneous catalysis, including cross-coupling reactions.
• Organic Electronic Materials: Serves as a core structure for developing new organic semiconductors, charge-transport materials, and light-emitting components for OLEDs and OFETs.
• Pharmaceutical Intermediate: Used in the research and development of new therapeutic agents, particularly where the benzo[B]phosphindole scaffold is pharmacologically active.
• Coordination Chemistry & Metal Complexes: Acts as a chelating agent or a precursor to create complexes with transition metals for catalytic and sensing applications.
• Polymer & Material Science: Incorporated into polymer backbones or as a functional additive to impart specific electronic or thermal properties to advanced polymers.
• Agrochemical Research: Investigated as an intermediate for novel crop protection agents and pesticides due to its heterocyclic structure.

Basic Information

Product Name	5-Chlorobenzo[B]Phosphindole
CAS No.	33300-85-5
Molecular Formula	C12H8ClP
Molecular Weight	218.62 g/mol
Synonyms	5-Chlorobenzo[b]phosphindole; 5-Chloro-1H-benzo[b]phosphindole; 5-Chloro-1H-phosphindolo[2,3-a]indole; 5-Chloro-benzo[b]phosphindole; Benzo[b]phosphindole, 5-chloro-; 33300-85-5; 5-Chlorophosphindoloindole
EINECS	Contact for details

Quality Control

Every batch of 5-Chlorobenzo[B]Phosphindole is manufactured and tested under strict quality management protocols to ensure consistency and purity for research and development applications. We provide comprehensive analytical data including HPLC purity, NMR, and mass spectrometry characterization. A detailed Certificate of Analysis (COA) is available for each lot, confirming identity, purity, and conformity to agreed 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). Keep away from strong oxidizing agents.

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.