You are using an unsupported browser. Please upgrade your browser to a newer version to get the best experience on Database of hazardous chemicals.
Record Information
Version1.0
Creation Date2009-03-06 18:58:27 UTC
Update Date2016-11-09 01:08:12 UTC
Accession NumberCHEM000245
Identification
Common NameMagnesium arsenate
ClassSmall Molecule
DescriptionMagnesium arsenate is a chemical compound of magnesium and arsenic. It is derived from arsenic acid. 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. (4)
Contaminant Sources
  • IARC Carcinogens Group 1
  • T3DB toxins
Contaminant Type
  • Arsenic Compound
  • Industrial/Workplace Toxin
  • Inorganic Compound
  • Pollutant
  • Synthetic Compound
Chemical Structure
Thumb
Synonyms
ValueSource
Magnesium arsenic acidGenerator
Chemical FormulaAs2Mg3O8
Average Molecular Mass350.753 g/mol
Monoisotopic Mass349.758 g/mol
CAS Registry Number10103-50-1
IUPAC Nametrimagnesium(2+) ion diarsorate
Traditional Nametrimagnesium(2+) ion diarsenate
SMILES[Mg++].[Mg++].[Mg++].[O-][As]([O-])([O-])=O.[O-][As]([O-])([O-])=O
InChI IdentifierInChI=1S/2AsH3O4.3Mg/c2*2-1(3,4)5;;;/h2*(H3,2,3,4,5);;;/q;;3*+2/p-6
InChI KeyWFJMDQBZLSODEP-UHFFFAOYSA-H
Chemical Taxonomy
Description belongs to the class of inorganic compounds known as alkaline earth metal arsenates. These are inorganic compounds in which the largest oxoanion is arsenate, and in which the heaviest atom not in an oxoanion is a lanthanide.
KingdomInorganic compounds
Super ClassMixed metal/non-metal compounds
ClassAlkaline earth metal oxoanionic compounds
Sub ClassAlkaline earth metal arsenates
Direct ParentAlkaline earth metal arsenates
Alternative Parents
Substituents
  • Arsenate
  • Alkaline earth metal arsenate
  • Inorganic oxide
  • Inorganic salt
  • Inorganic metalloid salt
  • Inorganic arsenic compound
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
AppearanceWhite powder.
Experimental Properties
PropertyValue
Melting PointNot Available
Boiling PointNot Available
SolubilityNot Available
Predicted Properties
PropertyValueSource
logP-1.2ChemAxon
pKa (Strongest Acidic)3.15ChemAxon
Physiological Charge-2ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area86.25 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity5.77 m³·mol⁻¹ChemAxon
Polarizability6.3 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
SpectraNot Available
Toxicity Profile
Route of ExposureOral (7) ; inhalation (7); dermal (7)
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. (3, 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. (8)
Toxicity ValuesLD50: 315 mg/kg (Oral, Mouse) (5)
Lethal DoseNot Available
Carcinogenicity (IARC Classification)1, carcinogenic to humans. (11)
Uses/SourcesMagnesium arsenate was first used as an insect stomach poison in the Mexican bean bettle around 1920-1930, but its used is now very limited (2).
Minimum Risk LevelAcute Oral: 0.005 mg/kg/day (10) Chronic Oral: 0.0003 mg/kg/day (10) Chronic Inhalation: 0.01 mg/m3 (10)
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. (3, 8)
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 (3).
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. (8)
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 ID24943
Kegg Compound IDNot Available
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
MSDSNot Available
General ReferencesNot Available