232-55-3

Basic information

• Product Name: 3H-BENZ[E]INDENE
• Synonyms: 3H-BENZ[E]INDENE
• CAS NO: 232-55-3
• Molecular Formula: C₁₃H₁₀
• Molecular Weight: 166.22
• Mol File: 232-55-3.mol
• Article Data: 5

Chemical Properties

• Melting Point: 48.5-50 °C
• Boiling Point: 312.183 °C at 760 mmHg
• Flash Point: 147.476 °C
• Appearance: /
• Density: 1.139 g/cm³
• Vapor Pressure: 0.001mmHg at 25°C
• Refractive Index: 1.692
• CAS DataBase Reference: 3H-BENZ[E]INDENE(CAS DataBase Reference)
• NIST Chemistry Reference: 3H-BENZ[E]INDENE(232-55-3)
• EPA Substance Registry System: 3H-BENZ[E]INDENE(232-55-3)

Safety Data

• Hazardous Substances Data: 232-55-3(Hazardous Substances Data)

Usage

General Description

3H-Benz[e]indene, also known as 2,3-Benzindene, is a polycyclic aromatic hydrocarbon (PAH) consisting of three fused benzene rings. It is a colorless, crystalline solid with a melting point of 95-97°C. 3H-Benz[e]indene is insoluble in water but soluble in organic solvents. It is mainly used as a precursor in the production of dyes, pigments, and pharmaceuticals. However, it is also a known environmental pollutant with potential health risks due to its carcinogenic properties. Therefore, measures should be taken to handle and dispose of this chemical properly to minimize its harmful effects on human health and the environment.

InChI:InChI=1/C13H10/c1-2-6-12-10(4-1)8-9-11-5-3-7-13(11)12/h1-4,6-9H,5H2

Upstream product

• 1694-19-5 E-1-(phenyl)-2-(4'-methoxyphenyl)ethene 
• 689-97-4 3-buten-1-yne 
• 75476-79-8 5-Iodoindene 
• 2320-32-3 6-methyl-6-phenylfulvene 
• 150723-29-8 5-(2-ethynylphenyl)-4-pentynal 
• 144152-93-2 2'-methylbiphenyl-2,3-dicarboxylic anhydride 

Relevant articles and documents

Gas phase formation of cyclopentanaphthalene (benzindene) isomers: Via reactions of 5- And 6-indenyl radicals with vinylacetylene

The tricyclic polycyclic aromatic hydrocarbons (PAHs) 3H-cyclopenta[a]naphthalene (C13H10), 1H-cyclopenta[b]naphthalene (C13H10) and 1H-cyclopenta[a]naphthalene (C13H10) along with their indene-based bicyclic isomers (E)-5-(but-1-en-3-yn-1-yl)-1H-indene, (E)-6-(but-1-en-3-yn-1-yl)-1H-indene, 5-(but-3-ene-1-yn-1-yl)-1H-in-dene, and 6-(but-3-ene-1-yn-1-yl)-1H-indene were formed via a directed synthesis in a high-temperature chemical micro reactor at the temperature of 1300 ± 10 K through the reactions of the 5- and 6-indenyl radicals (C9H7) with vinylacetylene (C4H4). The isomer distributions were probed utilizing tunable vacuum ultraviolet light by recording the photoionization efficiency curves at mass-to-charge of m/z = 166 (C13H10) and 167 (13CC12H10) of the products in a supersonic molecular beam. The underlying reaction mechanisms involve the initial formation of van-der-Waals complexes followed by addition of the 5- and 6-indenyl radicals to vinylacetylene via submerged barriers, followed by isomerization (hydrogen shifts, ring closures), and termination via atomic hydrogen elimination accompanied by aromatization. All the barriers involved in the formation of 3H-cyclopenta[a]naphthalene, 1H-cyclopenta[b]naphthalene and 1H-cyclopenta[a]naphthalene are submerged with respect to the reactants indicating that the mechanisms are in fact barrierless, potentially forming PAHs via the hydrogen abstraction-vinylacetylene addition (HAVA) pathway in the cold molecular clouds such as Taurus Molecular Cloud-1 (TMC-1) at temperatures as low as 10 K. This journal is

Al2O3-catalyzed transformation of 6-methyl-6-phenylpentafulvene into benzindoles

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Pyrolytic Generation of Aryne and Exocyclic Carbene Species: Trapping by an Adjacent o-Tolyl Group

Flash vacuum pyrolysis of 2'-methylbiphenyl-2,3-dicarboxylic anhydride (3-o-tolylphthalic anhydride) at 860 deg/0.07 mmm gave a 1:1 mixture of 1H- and 3H-benzindene (22percent), and fluorene (49percent).The pathways leading to these products are discussed.