19398-53-9

Basic information

• Product Name: 2,4-DIBROMOPENTANE
• Synonyms: 2,4-dibromo-pentan;dibromopentane;2,4-DIBROMOPENTANE;2,4-DIBROMOPENTANE 95+%
• CAS NO: 19398-53-9
• Molecular Formula: C₅H₁₀Br₂
• Molecular Weight: 229.94
• EINECS: 243-031-7
• Mol File: 19398-53-9.mol

Chemical Properties

• Melting Point: -28.63°C (estimate)
• Boiling Point: 40 °C / 4mmHg
• Flash Point: 64.3°C
• Appearance: /
• Density: 1,64 g/cm3
• Refractive Index: 1.4960-1.4990
• CAS DataBase Reference: 2,4-DIBROMOPENTANE(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4-DIBROMOPENTANE(19398-53-9)
• EPA Substance Registry System: 2,4-DIBROMOPENTANE(19398-53-9)

Safety Data

• Statements: 36/37/38
• Safety Statements: 26-36/37/39
• RIDADR: 1993
• HazardClass: 3
• PackingGroup: III
• Hazardous Substances Data: 19398-53-9(Hazardous Substances Data)

Usage

Uses

Used in Organic Synthesis:
2,4-Dibromopentane is utilized as an intermediate in organic synthesis for the production of a variety of chemicals. Its unique chemical structure allows for the creation of new compounds through various reactions.
Used in Chemical Production:
2,4-DIBROMOPENTANE serves as a key ingredient in the manufacturing process of other chemicals, contributing to the development of a range of products in the chemical industry.
Used as a Solvent:
2,4-Dibromopentane is employed as a solvent in certain chemical reactions, facilitating the process and improving the efficiency of the reaction.
Used as a Reagent:
In chemical reactions, 2,4-Dibromopentane acts as a reagent, participating in the chemical process to achieve desired outcomes.
Used in Pest Control:
2,4-Dibromopentane is also used as an insecticide and fumigant, leveraging its chemical properties to control pests.
Used in the Chemical Industry:
2,4-Dibromopentane is used as [application type] for [application reason] in the Chemical Industry, where its properties are harnessed to meet specific industrial needs.
However, due to its potential harmful effects on human health and the environment, including impacts on the respiratory and central nervous systems, it is crucial to handle 2,4-Dibromopentane with caution and employ proper protective measures during its use.

Upstream product

• 4161-60-8 4-hydroxypentan-2-one 
• 64923-71-3 meso/rac-2,4-pentanediol dimesylate 
• 1825-14-5 DL-pentan-2,4-diol 
• 1569-50-2 3-penten-2-ol 
• 123-54-6 acetylacetone 
• 1809-26-3 2-bromopent-3-ene 
• 10035-10-6 hydrogen bromide 
• 7789-60-8 phosphorus tribromide 
• 1825-14-5 pentane-1,3-diol 

Downstream Products

• 43042-67-7 2,4-dimethylcyclobutanone 
• 504-60-9 penta-1,3-diene 
• 10035-10-6 hydrogen bromide 
• 1145-23-9 2,4-diphenyl-pentane 

Related news

Conformation analysis of 2,4-DIBROMOPENTANE (cas 19398-53-9) and 2,5-dibromohexane08/13/2019

IR spectra for 2,4-dibromopentane and 2,5-dibromohexane in the liquid and solid states, and liquid-state Raman spectra are reported. Conformational studies have been undertaken with the aid of normal coordinate calculations. The pentane exists in approximately equal concentrations of SHHSHH (mes...detailed

Relevant articles and documents

Synthesis and characterization of palladium(ii) complexes with new diphosphonium-diphosphine and diphosphine ligands. Production of low molecular weight alternating polyketones via catalytic CO/ethene copolymerisation

The bis-cationic diphosphonium-diphosphine 6,7-di(di-2-methoxyphenyl) phosphinyl-2,2,4,4-tetra(di-2-methoxyphenyl)-2λ4, 4λ4-diphosphoniumbicyclo[3.1.1]heptane-bis(PF6) ((o-MeO-PCP)(PF6)2) and the diphosphine rac-2,4-bis((di-2-methoxyphenyl)phosphino)pentane (rac-o-MeO-bdpp) have been synthesized. Both ligands have been employed to coordinate PdCl2 and Pd(OAc)2 to give [PdCl2(o-MeO-PCP)](PF6) 2 (1a), PdCl2(rac-o-MeO-bdpp) (1b), [Pd(OAc) 2(o-MeO-PCP)](PF6)2 (2a) and Pd(OAc) 2(rac-o-MeO-bdpp) (2b). The ligands and complexes have been fully characterized in solution by multinuclear NMR spectroscopy. In addition, 1a and 1b have been authenticated by single crystal X-ray structure analyses. The PdII complexes 1a and 1b have been employed as catalyst precursors for the CO/ethene copolymerisation in water-acetic acid mixtures, while 2a and 2b have been tested in methanol in the presence of p-toluenesulfonic acid. Irrespective of the reaction media, perfectly alternating polyketones were obtained in excellent yields and with number-average molecular weights ranging from 7.1-13.9 kg mol-1 with the diphosphonium-diphosphine catalysts and from 37.2-48.2 kg mol-1 with the diphosphine catalysts. The Royal Society of Chemistry 2006.

Flexible molecules with defined shape XI[≠]. - Conformer equilibria in 2,4-disubstituted pentane derivatives

2,4-Disubstituted penfanes are molecules which adopt essentially only two conformations. Substituents have been varied in order to find those which lead to a strong preference of the conformer equilibrium. Studying 2- substituted 4-methylpentanes 3 and 4-benzyloxypentanes 12, it has been shown that substituent effects on the conformer equilibria are not additive, as would be expected on the grounds of steric effects alone. Rather, interactions between polar groups reinforce the bias of the conformer equilibria. When applied to 2,4-disubstituted pentanes, substituents such as chloro or phthalimido shift the conformer equilibrium to the side of the gg conformer with preferences exceeding 90%.

General Synthesis of Methyl- and Dimethyl-cyclobutanes from Simple 1,3-Diols by Phase Transfer Catalysis

A general method is described for the preparation of methyl- and dimethyl-cyclobutanes from simple 1,3-diols.The key steps of the procedure are a phase transfer catalysed ring closure and the transformation of a carboxyl group to a methyl group.Phase transfer catalysis provides good yields in the synthesis of the cyclobutane skeleton.

Synthesis of 1,2-Dimethylpyrene, 1,3-Dimethylpyrene and 1,2,3-Trimethylpyrene

The title compounds have been prepared, starting from 1H-phenalene 1.The method described in this paper is an efficient procedure for introducing methyl groups into the A-ring of pyrene.