781-17-9

Basic information

• Product Name: 4,5,9,10-TETRAHYDROPYRENE
• Synonyms: 4,5,9,10-TETRAHYDROPYRENE;4,5,9,10-TETRAHYDROPYRENE,80.0+%(GC);4,5,9,10-Tetrahydropyrene (purified by sublimation)
• CAS NO: 781-17-9
• Molecular Formula: C₁₆H₁₄
• Molecular Weight: 206.28236
• Product Categories: Pyrenes
• Mol File: 781-17-9.mol
• Article Data: 20

Chemical Properties

• Melting Point: 138.0 to 142.0 °C
• Boiling Point: 383°C(lit.)
• Flash Point: 176.1 °C
• Appearance: /
• Density: 1.0426 (estimate)
• Vapor Pressure: 9.69E-05mmHg at 25°C
• Refractive Index: 1.5000 (estimate)
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• CAS DataBase Reference: 4,5,9,10-TETRAHYDROPYRENE(CAS DataBase Reference)
• NIST Chemistry Reference: 4,5,9,10-TETRAHYDROPYRENE(781-17-9)
• EPA Substance Registry System: 4,5,9,10-TETRAHYDROPYRENE(781-17-9)

Safety Data

• Hazardous Substances Data: 781-17-9(Hazardous Substances Data)

Usage

General Description

4,5,9,10-Tetrahydropyrene is a polycyclic aromatic hydrocarbon (PAH) with a molecular formula of C16H12. It is a persistent environmental pollutant and is formed as a byproduct of incomplete combustion of organic materials such as fossil fuels and wood. 4,5,9,10-Tetrahydropyrene is known to be toxic and may pose a potential risk to human health and the environment. It has been found to be a mutagen and a possible human carcinogen, and exposure to 4,5,9,10-Tetrahydropyrene has been linked to respiratory and skin irritation, as well as potential damage to the liver and kidneys. It is important to minimize exposure to this chemical and take measures to prevent its release into the environment.

InChI:InChI=1/C16H14/c1-3-11-7-9-13-5-2-6-14-10-8-12(4-1)15(11)16(13)14/h1-6H,7-10H2

Upstream product

• 51744-98-0 [2.2]Metacyclophan 
• 129-00-0 pyrene 
• 144182-48-9 5-tert-Butyl-8-methyoxy<2.2>metaparacyclophane 
• 71-43-2 benzene 
• 137594-35-5 8-methoxy<2.2>metacyclophane 
• 108835-14-9 8-methoxy-5-tert-butyl<2.2>-metacyclophane 
• 6628-98-4 4,5-dihydropyrene 

Downstream Products

• 117929-13-2 2,7-dinitro-4,5,9,10-tetrahydropyrene 
• 82799-67-5 2-acetyl-4,5,9,10-tetrahydropyrene 
• 86470-98-6 2,7-diacetyl-4,5,9,10-tetrahydropyrene 
• 78751-61-8 2-isopropylpyrene 
• 24471-48-5 2-hydroxymethylpyrene 
• 26933-87-9 pyrene-2-carboxaldehyde 
• 136613-08-6 2,7-bis(4-methoxyphenyl)tetrahydropyrene 

Relevant articles and documents

Metallic Barium: A Versatile and Efficient Hydrogenation Catalyst

Ba metal was activated by evaporation and cocondensation with heptane. This black powder is a highly active hydrogenation catalyst for the reduction of a variety of unactivated (non-conjugated) mono-, di- and tri-substituted alkenes, tetraphenylethylene, benzene, a number of polycyclic aromatic hydrocarbons, aldimines, ketimines and various pyridines. The performance of metallic Ba in hydrogenation catalysis tops that of the hitherto most active molecular group 2 metal catalysts. Depending on the substrate, two different catalytic cycles are proposed. A: a classical metal hydride cycle and B: the Ba metal cycle. The latter is proposed for substrates that are easily reduced by Ba0, that is, conjugated alkenes, alkynes, annulated rings, imines and pyridines. In addition, a mechanism in which Ba0 and BaH2 are both essential is discussed. DFT calculations on benzene hydrogenation with a simple model system (Ba/BaH2) confirm that the presence of metallic Ba has an accelerating effect.

Facile sonochemical synthesis of carbon nanotube-supported bimetallic Pt-Rh nanoparticles for room temperature hydrogenation of arenes

Bimetallic Pt-Rh nanoparticles can be deposited uniformly on surfaces of carboxylate functionalized multi-walled carbon nanotubes (MWNTs) using a simple one-step sonochemical method. The bimetallic nanoparticle catalyst exhibits a strong synergistic effect relative to the individual Pt or Rh metal nanoparticles for catalytic hydrogenation of polycyclic aromatic hydrocarbons (PAHs), neat benzene and alkylbenzenes. Complete ring saturation of PAHs can be achieved using the bimetallic Pt-Rh/MWNTs catalyst at room temperature. This one-step synthesis technique provides a simple and rapid way of making highly active and recyclable CNT-supported monometallic and bimetallic nanocatalysts for low temperature hydrogenation reactions.

Pyrene-dihydrophenazine bis(radical cation) in a singlet ground state

A new pyrene-dihydrophenazine dyad was prepared. Oxidation of the neutral species produced a bis(radical cation) species, which was characterized by the absorptions of their component radical cations In the visible region. A thermally accessible triplet state was observed In the ESR measurement In frozen n-PrCN. The energy gap between the singlet and triplet states was determined to be 2J/kB = -36 ± 3 K.