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2D Structure
Also known as: 106-41-2, P-bromophenol, Phenol, 4-bromo-, P-bromohydroxybenzene, 4-bromo-phenol, Phenol, p-bromo-
Molecular Formula
C6H5BrO
Molecular Weight
173.01  g/mol
InChI Key
GZFGOTFRPZRKDS-UHFFFAOYSA-N
FDA UNII
LAO4J0183I

4-Bromophenol is a natural product found in Euglena gracilis, Ulva lactuca, and Bos taurus with data available.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
4-bromophenol
2.1.2 InChI
InChI=1S/C6H5BrO/c7-5-1-3-6(8)4-2-5/h1-4,8H
2.1.3 InChI Key
GZFGOTFRPZRKDS-UHFFFAOYSA-N
2.1.4 Canonical SMILES
C1=CC(=CC=C1O)Br
2.2 Other Identifiers
2.2.1 UNII
LAO4J0183I
2.3 Synonyms
2.3.1 MeSH Synonyms

1. P-bromophenol

2. Para-bromophenol

2.3.2 Depositor-Supplied Synonyms

1. 106-41-2

2. P-bromophenol

3. Phenol, 4-bromo-

4. P-bromohydroxybenzene

5. 4-bromo-phenol

6. Phenol, P-bromo-

7. 4-bromphenol

8. Para-bromophenol

9. 4-bromo Phenol

10. Mfcd00002313

11. Chembl57284

12. P-bromophenic Acid

13. Lao4j0183i

14. Nsc-4970

15. Bml

16. Ccris 632

17. Nsc 4970

18. Einecs 203-394-4

19. Parabromophenol

20. Parabromphenol

21. Unii-lao4j0183i

22. 4bromophenol

23. Para Bromophenol

24. Ai3-14903

25. P-bromo Phenol

26. P-bromo-phenol

27. 4-bromopbenol

28. Bromophenol-4

29. 4-bromanylphenol

30. Hsdb 7650

31. 1,4-bromophenol

32. 4-bromohydroxybenzene

33. 4-bromophenol, 99%

34. P-bromophenol [mi]

35. Schembl17443

36. P-bromophenol [hsdb]

37. Bidd:er0009

38. Dtxsid3051543

39. Chebi:47248

40. Nsc4970

41. 4-bromophenol, Analytical Standard

42. Zinc404316

43. Bcp17755

44. Str02366

45. Bdbm50150779

46. Stl281864

47. Akos000118965

48. Ps-3353

49. Db-023687

50. 4-bromophenol, Purum, >=98.0% (hplc)

51. Am20050178

52. B0787

53. B3910

54. Ft-0612047

55. En300-17967

56. 06b412

57. A801434

58. J-001587

59. J-514834

60. Q26421193

61. Z57127362

62. F0001-0119

2.4 Create Date
2005-03-26
3 Chemical and Physical Properties
Molecular Weight 173.01 g/mol
Molecular Formula C6H5BrO
XLogP32.6
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count1
Rotatable Bond Count0
Exact Mass g/mol
Monoisotopic Mass g/mol
Topological Polar Surface Area20.2
Heavy Atom Count8
Formal Charge0
Complexity66.9
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1
4 Pharmacology and Biochemistry
4.1 Metabolism/Metabolites

Bromobenzene causes hepatic and extrahepatic toxicity in rats. Toxicity is related to the presence of covalently bound material in these tissues. A major bromobenzene metabolite, p-bromophenol, has been shown to give rise to covalently bound material in liver, lung and kidney in vivo, but is not toxic. p-Bromophenol is formed from bromobenzene in liver, lung and kidney microsomes and is subsequently metabolized to 4-bromocatechol and covalently bound material. Bromobenzene-3,4-oxide generated in situ by liver microsomes, is detoxified by kidney, liver and lung cytosol. The results suggest that the kidney toxicity caused by bromobenzene is probably not mediated by either bromobenzene-3,4-oxide or the reactive metabolites of p-bromophenol. In contrast, bromobenzene-3, 4-oxide may play a role in the lung toxicity observed after bromobenzene administration. However, the covalently bound material found in extrahepatic tissues may be derived from both bromobenzene-3,4-oxide or the reactive metabolites of p-bromophenol, which may be formed directly by these tissues or transported there from the liver.

PMID:6748863 Monks TJ, Lau SS; Life Sci 35 (5): 561-8 (1984)


4-Bromophenol and 4-bromocatechol are formed as metabolites of bromobenzene in vivo and in isolated rat hepatocytes. Both of these metabolites may potentially contribute to the hepatotoxicity of bromobenzene. Bromobenzene metabolism in hepatocytes isolated from phenobarbital-treated rats forms 0.12 to 0.17 mM 4-bromophenol and 4-bromocatechol in 2 hr, with 1 to 3 mM bromobenzene.

PMID:4002232 Dankovic DA, Billings RE; Toxicol Appl Pharmacol 79 (2): 323-31 (1985)


A microsomal metabolite of p-bromophenol was isolated and identified as 6-(glutathion-S-yl)-4-bromocatechol. p-Bromophenol is metabolized in rat liver microsomes in part to 4-bromocatechol. The catechol undergoes autooxidation to the corresponding quinone or semiquinone, which can either covalently bind to microsomal protein or, in the presence of glutathione, form a glutathione conjugate. Superoxide dismutase inhibited these reactions by preventing the superoxide anion-mediated oxidation of 4-bromocatechol. Thus, in the presence of glutathione, superoxide dismutase caused a decrease in conjugate formation with a corresponding increase in 4-bromocatechol levels. Conditions which increased the in vitro covalent binding of p-bromophenol (namely, phenobarbital treatment and the absence of glutathione) did not cause toxicity in vivo. Thus, chemically reactive metabolite(s) of p-bromophenol do not play a role in bromobenzene-mediated hepatotoxicity.

PMID:6148209 Monks TJ et al; J.Drug Metab Dispos 12 (4): 432-7 (1984)


The metabolism of bromobenzene has been examined in isolated hepatocytes and liver microsomes from phenobarbital-induced rats and in phenobarbital-induced rats in vivo. The metabolite profile produced upon incubation of isolated rat hepatocytes with bromobenzene differed with the hepatocyte concentration. At a low hepatocyte concentration (0.5 x 10+6 cells/mL), 4-bromophenol was the major metabolite, while at higher hepatocyte concentrations (2.0 and 5.0 x 10+6 cells/mL) bromobenzene-3,4-dihydrodiol was the major metabolite. 4-Bromophenol was the primary metabolite in incubations with rat liver microsomes. In vivo, 3- and 4-bromophenol were more predominant, with very little dihydrodiol formed. 4-Bromocatechol, a potentially toxic metabolite of bromobenzene, was formed in vivo as well as in isolated hepatocytes and microsomes. However, the mechanism of catechol formation differed, as determined by the retention of a deuterium label at the para position of bromobenzene. In microsomes, 4-bromophenol was the predominant precursor metabolite of 4-bromocatechol. In isolated hepatocytes, although the relative contribution of 4-bromophenol as the bromocatechol precursor differed with hepatocyte concentration, bromobenzene-3,4-dihydrodiol was the predominant precursor at all concentrations. In vivo, as in isolated hepatocytes, 4-bromocatechol was formed primarily via bromobenzene-3,4-dihydrodiol.

PMID:1974190 Miller NE et al; Drug Metab Dispos 18 (3): 304-8 (1990)


For more Metabolism/Metabolites (Complete) data for 4-BROMOPHENOL (6 total), please visit the HSDB record page.


4-Bromophenol has known human metabolites that include (2S,3S,4S,5R)-6-(4-bromophenoxy)-3,4,5-trihydroxyoxane-2-carboxylic acid.

S73 | METXBIODB | Metabolite Reaction Database from BioTransformer | DOI:10.5281/zenodo.4056560