Record Information |
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Version | 2.0 |
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Creation Date | 2009-06-19 21:58:59 UTC |
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Update Date | 2014-12-24 20:24:15 UTC |
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Accession Number | T3D1577 |
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Identification |
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Common Name | Palladium(II) nitrate |
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Class | Small Molecule |
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Description | Palladium(II) nitrate is a nitrate of palladium. Palladium is a chemical element with the chemical symbol Pd and an atomic number of 46. It is found as a free metal alloyed with gold and other platinum group metals and in the rare minerals cooperite and polarite. Nitrite is a toxic compound known to cause methemoglobinemia. (7, 5) |
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Compound Type | - Industrial/Workplace Toxin
- Inorganic Compound
- Nitrate
- Palladium Compound
- Synthetic Compound
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Chemical Structure | |
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Synonyms | Synonym | Hydrogen tetranitropalladate (II) | Palladium dinitrate | Palladium nitrate | Palladium(II) nitrate dihydrate | Palladium(II) nitric acid |
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Chemical Formula | N2O6Pd |
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Average Molecular Mass | 230.430 g/mol |
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Monoisotopic Mass | 229.879 g/mol |
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CAS Registry Number | 10102-05-3 |
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IUPAC Name | palladium(2+) ion dinitrate |
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Traditional Name | palladium(2+) ion dinitrate |
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SMILES | [Pd++].[O-][N+]([O-])=O.[O-][N+]([O-])=O |
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InChI Identifier | InChI=1S/2NO3.Pd/c2*2-1(3)4;/q2*-1;+2 |
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InChI Key | InChIKey=GPNDARIEYHPYAY-UHFFFAOYSA-N |
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Chemical Taxonomy |
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Description | belongs to the class of inorganic compounds known as transition metal nitrates. These are inorganic compounds in which the largest oxoanion is nitrate, and in which the heaviest atom not in an oxoanion is a transition metal. |
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Kingdom | Inorganic compounds |
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Super Class | Mixed metal/non-metal compounds |
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Class | Transition metal oxoanionic compounds |
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Sub Class | Transition metal nitrates |
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Direct Parent | Transition metal nitrates |
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Alternative Parents | |
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Substituents | - Transition metal nitrate
- Inorganic oxide
- Inorganic salt
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Molecular Framework | Not Available |
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External Descriptors | Not Available |
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Biological Properties |
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Status | Detected and Not Quantified |
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Origin | Exogenous |
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Cellular Locations | |
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Biofluid Locations | Not Available |
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Tissue Locations | Not Available |
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Pathways | Not Available |
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Applications | Not Available |
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Biological Roles | Not Available |
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Chemical Roles | Not Available |
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Physical Properties |
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State | Solid |
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Appearance | Red/brown solid. |
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Experimental Properties | Property | Value |
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Melting Point | Not Available | Boiling Point | Not Available | Solubility | Not Available | LogP | Not Available |
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Predicted Properties | |
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Spectra |
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Spectra | Not Available |
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Toxicity Profile |
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Route of Exposure | Oral (7) ; inhalation (7) |
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Mechanism of Toxicity | Due to their ability to form strong complexes with both inorganic and organic ligands, palladium ions can disturb cellular equilibria, replace other essential ions, and interact with functional groups of macromolecules, such as proteins or DNA. Palladium complexes binding to DNA and RNA leads to strand breakage. Palladium ions are able to inhibit most major cellular functions, including DNA and RNA synthesis. Palladium compounds have been shown to bind to and inhibit various enzymes, including creatine kinase and prolyl hydroxylase. Nitrate's toxicity is a result of it's conversion to nitrite once in the body. Nitrite causes the autocatalytic oxidation of oxyhemoglobin to hydrogen peroxide and methemoglobin. This elevation of methemoglobin levels is a condition known as methemoglobinemia, and is characterized by tissue hypoxia, as methemoglobin cannot bind oxygen. (3, 8, 6) |
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Metabolism | Palladium may be absorbed through oral, dermal, and inhalation exposure. Once in the body it distributes to the kidney, liver, spleen, lymph nodes, adrenal gland, lung and bone. Palladium's ability to form complexes allows it the bind to amino acids, proteins, DNA, and other macromolecules. Palladium and its metabolites are excreted in the urine and faeces. Intake of some amount of nitrates and nitrites is a normal part of the nitrogen cycle in humans. In vivo conversion of nitrates to nitrites can occur in the gastrointestional tract under the right conditions, significantly enhancing nitrates' toxic potency. The major metabolic pathway for nitrate is conversion to nitrite, and then to ammonia. Nitrites, nitrates, and their metabolites are excreted in the urine. (7, 1) |
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Toxicity Values | Not Available |
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Lethal Dose | Not Available |
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Carcinogenicity (IARC Classification) | Ingested nitrate or nitrite under conditions that result in endogenous nitrosation is probably carcinogenic to humans (Group 2A). (4) |
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Uses/Sources | Not Available |
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Minimum Risk Level | Not Available |
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Health Effects | Contact with palladium may cause palladium sensitivity and allergy. Animal studies have shown that palladium may damage the liver and kidney. Nitrate and nitrite poisoning causes methemoglobinemia. Nitrites may cause pregnancy complications and developmental effects. They may also be carcinogenic. (7, 6) |
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Symptoms | Skin contact with palladium may cause contact dermatitis, erythema, and oedema. Nitrate and nitrite poisoning causes methemoglobinemia. Symptoms include cyanosis, cardiac dysrhythmias and circulatory failure, and progressive central nervous system (CNS) effects. CNS effects can range from mild dizziness and lethargy to coma and convulsions. (7, 6) |
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Treatment | Methemoglobinemia can be treated with supplemental oxygen and methylene blue 1% solution administered intravenously slowly over five minutes followed by IV flush with normal saline. Methylene blue restores the iron in hemoglobin to its normal (reduced) oxygen-carrying state. (8) |
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Normal Concentrations |
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Abnormal Concentrations |
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| Not Available |
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External Links |
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DrugBank ID | Not Available |
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HMDB ID | Not Available |
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PubChem Compound ID | 24932 |
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ChEMBL ID | Not Available |
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ChemSpider ID | Not Available |
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KEGG ID | Not Available |
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UniProt ID | Not Available |
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OMIM ID | |
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ChEBI ID | Not Available |
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BioCyc ID | Not Available |
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CTD ID | C090639 |
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Stitch ID | Palladium(II) nitrate |
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PDB ID | Not Available |
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ACToR ID | Not Available |
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Wikipedia Link | Palladium(II)_nitrate |
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References |
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Synthesis Reference | Not Available |
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MSDS | T3D1577.pdf |
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General References | - Smith DR, Kahng MW, Quintanilla-Vega B, Fowler BA: High-affinity renal lead-binding proteins in environmentally-exposed humans. Chem Biol Interact. 1998 Aug 14;115(1):39-52. [9817074 ]
- Sanins SM, Timbrell JA, Elcombe C, Nicholson JK: Proton NMR spectroscopic studies on the metabolism and biochemical effects of hydrazine in vivo. Arch Toxicol. 1992;66(7):489-95. [1332653 ]
- Keszler A, Piknova B, Schechter AN, Hogg N: The reaction between nitrite and oxyhemoglobin: a mechanistic study. J Biol Chem. 2008 Apr 11;283(15):9615-22. doi: 10.1074/jbc.M705630200. Epub 2008 Jan 17. [18203719 ]
- International Agency for Research on Cancer (2014). IARC Monographs on the Evaluation of Carcinogenic Risks to Humans. [Link]
- Wikipedia. Palladium. Last Updated 14 June 2009. [Link]
- International Programme on Chemical Safety (IPCS) INCHEM (2002). Environmental Health Criteria for Palladium. [Link]
- ATSDR - Agency for Toxic Substances and Disease Registry (2007). Case Studies in Environmental Medicine. Nitrate/Nitrite Toxicity. U.S. Public Health Service in collaboration with U.S. Environmental Protection Agency (EPA). [Link]
- Wikipedia. Methemoglobinemia. Last Updated 22 July 2009. [Link]
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Gene Regulation |
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Up-Regulated Genes | Not Available |
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Down-Regulated Genes | Not Available |
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