Description

4,5-Dihydropyrene is a polycyclic aromatic hydrocarbon (PAH) derivative with a unique, non-alternant structure, serving as a valuable intermediate in advanced organic synthesis. Its significance lies in its role as a fundamental building block for creating complex molecular architectures, particularly in materials science and photophysical research. This compound is essential for researchers and manufacturers in the fields of organic electronics, specialty polymers, and advanced dye chemistry, where precise molecular design is critical.

Application

• Organic Semiconductor Precursor: A key starting material for synthesizing novel organic electronic materials, including hole-transport layers and n-type semiconductors.
• Advanced Polymer Synthesis: Used to incorporate rigid, planar aromatic units into specialty polymers to enhance thermal stability and optoelectronic properties.
• Fluorescent Dye & Probe Development: Serves as a core scaffold for developing new fluorescent dyes and molecular probes with tailored emission characteristics.
• Photophysical & Electrochemical Research: A model compound for studying intramolecular charge transfer, excimer formation, and redox behavior in non-alternant PAHs.
• Ligand Synthesis for Catalysis: Utilized in the preparation of sophisticated ligands for transition metal catalysis, leveraging its extended π-system.
• Nanomaterial Functionalization: Acts as a molecular anchor or functional group for the surface modification of carbon nanotubes and graphene.

Basic Information

Product Name	4,5-Dihydropyrene
CAS No.	6628-98-4
Molecular Formula	C₁₆H₁₂
Molecular Weight	204.27 g/mol
Synonyms	4,5-Dihydro-1H-pyrene; 1,2,3,6,7,8-Hexahydropyrene; 4,5-Dihydropyrene; Pyrene, 4,5-dihydro-; NSC 163022; 4,5-DHP; 1H-Pyrene, 4,5-dihydro-
EINECS	229-603-8

Quality Control

Our 4,5-Dihydropyrene is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical characterization, including HPLC, GC-MS, and NMR spectroscopy, to verify identity and purity. A Certificate of Analysis (COA) detailing all test results is provided with every shipment. We support research and development with material that meets the stringent requirements for advanced synthetic applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The compound is light-sensitive and should be handled under appropriate conditions to prevent degradation. Keep the container tightly sealed when not in use to minimize exposure to air.

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.