Resorcinol benzenediol (m-dihydroxybenzene)

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Description

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Resorcinol ( resorcin) benzenediol (m-dihydroxybenzene) For Sale Online in SPAIN, GERMANY

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Description

Resorcinol (or resorcin) is an organic compound with the formula C6H4(OH)2. It is one of three isomeric benzenediols, the 1,3-isomer (or meta-isomer). It is a white, and also water-soluble solid.

Resorcinol is produced in several steps from benzene, starting with dialkylation with propylene to give 1,3-diisopropylbenzene. Oxidation and also Hock rearrangement of this disubstituted arene gives acetone and resorcinol.

It is an expensive chemical, produced in only a very few locations around the world (to date only three commercial plants are known to be operative: in the United States, West Germany, and also Japan), and as such it is the determining factor in the cost of PRF adhesives.

Many additional routes exist for resorcinol. It can be produced when any of a large number of resins (such as galbanum and asafoetida) are melted with potassium hydroxide, or by the distillation of Brazilwood extract. It may be prepared synthetically by melting 3-iodophenol, phenol-3-sulfonic acid, or benzene-1,3-disulfonic acid with potassium carbonate; by the action of nitrous acid on 3-aminophenol or also on 1,3-diaminobenzene. Many ortho- and para-compounds of the aromatic series (for example, the bromophenols, benzene-para-disulfonic acid) also yield resorcinol on fusion with potassium hydroxide.

 

Applications

Resorcinol is mainly used in the production of resins. As a mixture with phenol, it condenses with formaldehyde to afford adhesives.

Medical

It is present in over-the-counter topical acne treatments at 2% or less concentration, and in prescription treatments at higher concentrations. Monoacetylresorcinol, C6H4(OH)(O–COCH3), is used under the name of euresol. It is used in hidradenitis suppurativa with limited evidence showing it can help with the resolution of the lesions. Resorcinol is one of the active ingredients in products such as Resinol, Vagisil, and also Clearasil.

In the 1950s and early 1960s, the British Army used it, in the form of a paste applied directly to the skin. One such place where this treatment was given to soldiers with chronic acne was the Cambridge Military Hospital, Aldershot, England. It was not always successful also.

4-Hexylresorcinol is an anesthetic found in throat lozenges.

Chemical
  • Resorcinol is also used as a chemical intermediate for the synthesis of pharmaceuticals and also other organic compounds. It is used in the production of diazo dyes and plasticizers and as a UV absorber in resins.
  • This is an analytical reagent for the qualitative determination of ketoses (Seliwanoff’s test).
  • It is the starting material for resorcinarene molecules and the initiating explosive lead styphnate. Also
  • Resorcinol reacts with formaldehyde to form a thermoset resin which can form the basis of an aerogel.

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