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Record Information
Version1.0
Creation Date2009-03-06 18:58:27 UTC
Update Date2016-11-09 01:08:12 UTC
Accession NumberCHEM000240
Identification
Common NameGallium arsenide
ClassSmall Molecule
DescriptionGallium arsenide is a chemical compound of gallium and arsenic. It is used to make devices such as microwave frequency integrated circuits, infrared light-emitting diodes, laser diodes and solar cells. It is also a semiconductor. Arsenic is a chemical element that has the symbol As and atomic number 33. It is a poisonous metalloid that has many allotropic forms: yellow (molecular non-metallic) and several black and grey forms (metalloids) are a few that are seen. Three metalloidal forms of arsenic with different crystal structures are found free in nature (the minerals arsenopyrite and the much rarer arsenolamprite and pararsenolamprite), but it is more commonly found as a compound with other elements. (3, 10)
Contaminant Sources
  • IARC Carcinogens General
  • IARC Carcinogens Group 1
  • T3DB toxins
Contaminant Type
  • Arsenic Compound
  • Industrial/Workplace Toxin
  • Inorganic Compound
  • Pollutant
  • Synthetic Compound
Chemical Structure
Thumb
SynonymsNot Available
Chemical FormulaAsGaH3
Average Molecular Mass147.669 g/mol
Monoisotopic Mass146.871 g/mol
CAS Registry Number1303-00-0
IUPAC Namearsane gallane
Traditional Namearsane gallane
SMILES[Ga].[AsH3]
InChI IdentifierInChI=1S/AsH3.Ga/h1H3;
InChI KeySMMXJUPXOBZSBH-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of inorganic compounds known as trivalent inorganic arsenic compounds. These are inorganic compounds containing a trivalent arsenic atom.
KingdomInorganic compounds
Super ClassMiscellaneous inorganic compounds
ClassInorganic arsenic compounds
Sub ClassTrivalent inorganic arsenic compounds
Direct ParentTrivalent inorganic arsenic compounds
Alternative Parents
Substituents
  • Trivalent inorganic arsenic compound
  • Inorganic salt
  • Miscellaneous mixed metal/non-metal
  • Inorganic metalloid salt
Molecular FrameworkNot Available
External DescriptorsNot Available
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
StateSolid
AppearanceDark grey solid.
Experimental Properties
PropertyValue
Melting Point1238°C (1511°K)
Boiling PointNot Available
SolubilityNot Available
Predicted Properties
PropertyValueSource
logP-0.23ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count0ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area0 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity2.4 m³·mol⁻¹ChemAxon
Polarizability3.4 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0udi-0900000000-bdad18710fc7bf3deb2fView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0udi-0900000000-bdad18710fc7bf3deb2fView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0udi-0900000000-bdad18710fc7bf3deb2fView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-0900000000-df05c61b2132f0fc0356View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0002-0900000000-df05c61b2132f0fc0356View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0002-0900000000-df05c61b2132f0fc0356View in MoNA
Toxicity Profile
Route of ExposureOral (5) ; inhalation (5); dermal (5)
Mechanism of ToxicityArsenic and its metabolites disrupt ATP production through several mechanisms. At the level of the citric acid cycle, arsenic inhibits pyruvate dehydrogenase and by competing with phosphate it uncouples oxidative phosphorylation, thus inhibiting energy-linked reduction of NAD+, mitochondrial respiration, and ATP synthesis. Hydrogen peroxide production is also increased, which might form reactive oxygen species and oxidative stress. Arsenic's carginogenicity is influenced by the arsenical binding of tubulin, which results in aneuploidy, polyploidy and mitotic arrests. The binding of other arsenic protein targets may also cause altered DNA repair enzyme activity, altered DNA methylation patterns and cell proliferation. (2, 1)
MetabolismArsenic is absorbed mainly by inhalation or ingestion, as to a lesser extent, dermal exposure. It is then distributed throughout the body, where it is reduced into arsenite if necessary, then methylated into monomethylarsenic (MMA) and dimethylarsenic acid (DMA) by arsenite methyltransferase. Arsenic and its metabolites are primarily excreted in the urine. Arsenic is known to induce the metal-binding protein metallothionein, which decreases the toxic effects of arsenic and other metals by binding them and making them biologically inactive, as well as acting as an antioxidant. (6)
Toxicity ValuesLD50: 4700 mg/kg (Intraperitoneal, Mouse) (4)
Lethal DoseNot Available
Carcinogenicity (IARC Classification)1, carcinogenic to humans. (9)
Uses/SourcesGallium arsenide is used as a semiconductor, as well as in solar cells, x-ray detection diodes, and laser diodes. (10)
Minimum Risk LevelAcute Oral: 0.005 mg/kg/day (8) Chronic Oral: 0.0003 mg/kg/day (8) Chronic Inhalation: 0.01 mg/m3 (8)
Health EffectsArsenic poisoning can lead to death from multi-system organ failure, probably from necrotic cell death, not apoptosis. Arsenic is also a known carcinogen, esepcially in skin, liver, bladder and lung cancers. (2, 6)
SymptomsExposure to lower levels of arsenic can cause nausea and vomiting, decreased production of red and white blood cells, abnormal heart rhythm, damage to blood vessels, and a sensation of burn (2).
TreatmentArsenic poisoning can be treated by chelation therapy, using chelating agents such as dimercaprol, EDTA or DMSA. Charcoal tablets may also be used for less severe cases. In addition, maintaining a diet high in sulfur helps eliminate arsenic from the body. (6)
Concentrations
Not Available
DrugBank IDNot Available
HMDB IDNot Available
FooDB IDNot Available
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkNot Available
Chemspider IDNot Available
ChEBI IDNot Available
PubChem Compound IDNot Available
Kegg Compound IDNot Available
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
MSDSNot Available
General ReferencesNot Available