Record Information
Version2.0
Creation Date2009-06-22 16:08:38 UTC
Update Date2014-12-24 20:24:40 UTC
Accession NumberT3D1810
Identification
Common NameBromine dioxide
ClassSmall Molecule
DescriptionBromine dioxide in an oxide of bromine. Bromine is a halogen element with the symbol Br and atomic number 35. Diatomic bromine does not occur naturally, but bromine salts can be found in crustal rock. (3)
Compound Type
  • Bromide Compound
  • Industrial/Workplace Toxin
  • Inorganic Compound
  • Non-Metal
  • Synthetic Compound
Chemical Structure
Thumb
Synonyms
Synonym
(obro)(.)
BrO2(.)
Dioxidobromine(.)
OBrO
Chemical FormulaBrO2
Average Molecular Mass111.903 g/mol
Monoisotopic Mass110.908 g/mol
CAS Registry Number21255-83-4
IUPAC Namebromosyloxidanyl
Traditional Namebromosyloxidanyl
SMILES[O][Br]=O
InChI IdentifierInChI=1S/BrO2/c2-1-3
InChI KeyInChIKey=SISAYUDTHCIGLM-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of inorganic compounds known as halogen oxides. These are inorganic compounds containing an oxygen atom of an oxidation state of -2, in which the heaviest atom bonded to the oxygen is a halogen.
KingdomInorganic compounds
Super ClassHomogeneous non-metal compounds
ClassHalogen organides
Sub ClassHalogen oxides
Direct ParentHalogen oxides
Alternative Parents
Substituents
  • Halogen oxide
  • Inorganic oxide
Molecular FrameworkNot Available
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Cytoplasm
  • Extracellular
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateLiquid
AppearanceYellow crystals.
Experimental Properties
PropertyValue
Melting Point0°C
Boiling PointNot Available
SolubilityNot Available
LogPNot Available
Predicted Properties
PropertyValueSource
logP0.41ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area17.07 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity11.62 m³·mol⁻¹ChemAxon
Polarizability5.07 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
SpectraNot Available
Toxicity Profile
Route of ExposureOral (4) ; inhalation (4) ; dermal (4)
Mechanism of ToxicityBromine is a powerful oxidizing agent and is able to release oxygen free radicals from the water in mucous membranes. These free radicals are also potent oxidizers and produce tissue damage. In additon, the formation of hydrobromic and bromic acids will result in secondary irritation. The bromide ion is also known to affect the central nervous system, causing bromism. This is believed to be a result of bromide ions substituting for chloride ions in the in actions of neurotransmitters and transport systems, thus affecting numerous synaptic processes. (4, 5, 1)
MetabolismBromine is mainly absorbed via inhalation, but may also enter the body through dermal contact. Bromine salts can be ingested. Due to its reactivity, bromine quickly forms bromide and may be deposited in the tissues, displacing other halogens. (4)
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesNot Available
Minimum Risk LevelNot Available
Health EffectsBromine vapour causes irritation and direct damage to the mucous membranes. Elemental bromine also burns the skin. The bromide ion is a central nervous system depressant and chronic exposure produces neuronal effects. This is called bromism and can result in central reactions reaching from somnolence to coma, cachexia, exicosis, loss of reflexes or pathologic reflexes, clonic seizures, tremor, ataxia, loss of neural sensitivity, paresis, papillar edema of the eyes, abnormal speech, cerebral edema, delirium, aggressiveness, and psychoses. (3, 4, 5)
SymptomsBromine vapour causes irritation and direct damage to the mucous membranes. Symptoms include lacrimation, rhinorrhoea, eye irritation with mucous secretions from the oropharyngeal and upper airways, coughing, dyspnoea, choking, wheezing, epistaxis, and headache. The bromide ion is a central nervous system depressant producing ataxia, slurred speech, tremor, nausea, vomiting, lethargy, dizziness, visual disturbances, unsteadiness, headaches, impaired memory and concentration, disorientation and hallucinations. This is called bromism. (4, 5)
TreatmentEYES: irrigate opened eyes for several minutes under running water. INGESTION: do not induce vomiting. Rinse mouth with water (never give anything by mouth to an unconscious person). Seek immediate medical advice. SKIN: should be treated immediately by rinsing the affected parts in cold running water for at least 15 minutes, followed by thorough washing with soap and water. If necessary, the person should shower and change contaminated clothing and shoes, and then must seek medical attention. INHALATION: supply fresh air. If required provide artificial respiration.
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
DrugBank IDNot Available
HMDB IDNot Available
PubChem Compound ID5460629
ChEMBL IDNot Available
ChemSpider ID4574124
KEGG IDNot Available
UniProt IDNot Available
OMIM ID
ChEBI ID29874
BioCyc IDCPD-614
CTD IDNot Available
Stitch IDBromine dioxide
PDB IDNot Available
ACToR IDNot Available
Wikipedia LinkNot Available
References
Synthesis ReferenceNot Available
MSDSNot Available
General References
  1. Ziouzenkova O, Orasanu G, Sharlach M, Akiyama TE, Berger JP, Viereck J, Hamilton JA, Tang G, Dolnikowski GG, Vogel S, Duester G, Plutzky J: Retinaldehyde represses adipogenesis and diet-induced obesity. Nat Med. 2007 Jun;13(6):695-702. Epub 2007 May 27. [17529981 ]
  2. Golomb, BA (1999). A Review of the Scientific Literature As It Pertains to Gulf War Illnesses. Volume 2: Pyridostigmine Bromide. Washington, DC: RAND.
  3. Wikipedia. Bromine. Last Updated 9 June 2009. [Link]
  4. International Programme on Chemical Safety (IPCS) INCHEM (1992). Poison Information Monograph for Bromine. [Link]
  5. Wikipedia. Potassium bromide. Last Updated 9 June 2009. [Link]
Gene Regulation
Up-Regulated GenesNot Available
Down-Regulated GenesNot Available

Targets

General Function:
Voltage-gated chloride channel activity
Specific Function:
Voltage-gated chloride channel. Chloride channels have several functions including the regulation of cell volume; membrane potential stabilization, signal transduction and transepithelial transport.
Gene Name:
CLCN1
Uniprot ID:
P35523
Molecular Weight:
108625.435 Da
References
  1. Simchowitz L: Interactions of bromide, iodide, and fluoride with the pathways of chloride transport and diffusion in human neutrophils. J Gen Physiol. 1988 Jun;91(6):835-60. [3047312 ]
  2. Pusch M, Jordt SE, Stein V, Jentsch TJ: Chloride dependence of hyperpolarization-activated chloride channel gates. J Physiol. 1999 Mar 1;515 ( Pt 2):341-53. [10050002 ]
General Function:
Voltage-gated chloride channel activity
Specific Function:
Voltage-gated chloride channel. Chloride channels have several functions including the regulation of cell volume; membrane potential stabilization, signal transduction and transepithelial transport. May be important in urinary concentrating mechanisms.
Gene Name:
CLCNKA
Uniprot ID:
P51800
Molecular Weight:
75284.08 Da
References
  1. Simchowitz L: Interactions of bromide, iodide, and fluoride with the pathways of chloride transport and diffusion in human neutrophils. J Gen Physiol. 1988 Jun;91(6):835-60. [3047312 ]
  2. Pusch M, Jordt SE, Stein V, Jentsch TJ: Chloride dependence of hyperpolarization-activated chloride channel gates. J Physiol. 1999 Mar 1;515 ( Pt 2):341-53. [10050002 ]
General Function:
Voltage-gated chloride channel activity
Specific Function:
Voltage-gated chloride channel. Chloride channels have several functions including the regulation of cell volume; membrane potential stabilization, signal transduction and transepithelial transport. May be important in urinary concentrating mechanisms.
Gene Name:
CLCNKB
Uniprot ID:
P51801
Molecular Weight:
75445.3 Da
References
  1. Simchowitz L: Interactions of bromide, iodide, and fluoride with the pathways of chloride transport and diffusion in human neutrophils. J Gen Physiol. 1988 Jun;91(6):835-60. [3047312 ]
  2. Pusch M, Jordt SE, Stein V, Jentsch TJ: Chloride dependence of hyperpolarization-activated chloride channel gates. J Physiol. 1999 Mar 1;515 ( Pt 2):341-53. [10050002 ]
General Function:
Inhibitory extracellular ligand-gated ion channel activity
Specific Function:
Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel (By similarity).
Gene Name:
GABRA1
Uniprot ID:
P14867
Molecular Weight:
51801.395 Da
References
  1. Suzuki S, Kawakami K, Nakamura F, Nishimura S, Yagi K, Seino M: Bromide, in the therapeutic concentration, enhances GABA-activated currents in cultured neurons of rat cerebral cortex. Epilepsy Res. 1994 Oct;19(2):89-97. [7843172 ]
General Function:
Gaba-gated chloride ion channel activity
Specific Function:
Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel.
Gene Name:
GABRB3
Uniprot ID:
P28472
Molecular Weight:
54115.04 Da
References
  1. Suzuki S, Kawakami K, Nakamura F, Nishimura S, Yagi K, Seino M: Bromide, in the therapeutic concentration, enhances GABA-activated currents in cultured neurons of rat cerebral cortex. Epilepsy Res. 1994 Oct;19(2):89-97. [7843172 ]
General Function:
Inhibitory extracellular ligand-gated ion channel activity
Specific Function:
Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel.
Gene Name:
GABRG2
Uniprot ID:
P18507
Molecular Weight:
54161.78 Da
References
  1. Suzuki S, Kawakami K, Nakamura F, Nishimura S, Yagi K, Seino M: Bromide, in the therapeutic concentration, enhances GABA-activated currents in cultured neurons of rat cerebral cortex. Epilepsy Res. 1994 Oct;19(2):89-97. [7843172 ]