Description

5-Methylene-6,7,8,9-Tetrahydro-5H-Benzo[7]Annulene is a specialized organic compound belonging to the class of annulenes and fused-ring hydrocarbons, identified by CAS NO 40562-09-2. This compound serves as a valuable advanced intermediate or building block in synthetic organic chemistry, particularly for constructing complex molecular architectures. It is primarily sought by pharmaceutical R&D, agrochemical, and advanced materials sectors for applications in drug discovery and specialty chemical synthesis.

Application

• Pharmaceutical Intermediate: Key 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: Serves as a precursor for organic semiconductors, liquid crystals, or specialty polymers.
• Organic Synthesis: A versatile synthon for constructing complex polycyclic and strained ring systems in academic and industrial research.
• Catalyst & Ligand Development: Potential framework for creating novel ligands in transition metal catalysis.
• Flavor & Fragrance Chemistry: Intermediate for synthesizing complex aroma chemicals with unique structural motifs.

Basic Information

Item	Detail
Product Name	5-Methylene-6,7,8,9-Tetrahydro-5H-Benzo[7]Annulene
CAS No.	40562-09-2
Molecular Formula	C12H12
Molecular Weight	156.23 g/mol
Synonyms	5-Methylenebenzocycloheptene; 5-Methylene-6,7,8,9-tetrahydro-5H-benzocycloheptene; 5-Methylenebenzocycloheptane; 5H-Benzo[7]annulene, 5-methylene-6,7,8,9-tetrahydro-; 5-Methylenebenzocycloheptene; 5-Methylidene-6,7,8,9-tetrahydro-5H-benzocycloheptene
EINECS	Contact for details

Quality Control

Our 5-Methylene-6,7,8,9-Tetrahydro-5H-Benzo[7]Annulene is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and batch-to-batch consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

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	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Purity (HPLC/GC)	≥ 95.0% (Standard Grade)
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.