Relevant Data

Food Additives Approved by WHO:

Food Additives Approved by European Union:

  • Sodium nitrate [show]

General Information

MaintermSODIUM NITRATE
Doc TypeASP
CAS Reg.No.(or other ID)7631-99-4
Regnum 175.105
176.180
176.320
173.310
181.33
181.34
172.170
172.175

From www.fda.gov

Computed Descriptors

Download SDF
2D Structure
CID24268
IUPAC Namesodium;nitrate
InChIInChI=1S/NO3.Na/c2-1(3)4;/q-1;+1
InChI KeyVWDWKYIASSYTQR-UHFFFAOYSA-N
Canonical SMILES[N+](=O)([O-])[O-].[Na+]
Molecular FormulaNaNO3
Wikipediasodium nitrate

From Pubchem


Computed Properties

Property Name Property Value
Molecular Weight84.994
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count3
Rotatable Bond Count0
Complexity18.8
CACTVS Substructure Key Fingerprint A A A D c Q A C M C A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A E A A A A A A A A A A A A A A A A Q A A B A A A A A Q A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A = =
Topological Polar Surface Area62.9
Monoisotopic Mass84.978
Exact Mass84.978
Compound Is CanonicalizedTrue
Formal Charge0
Heavy Atom Count5
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Isotope Atom Count0
Covalently-Bonded Unit Count2

From Pubchem


Toxicity Profile

Route of ExposureOral ; inhalation
Mechanism of ToxicityNitrate'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.
MetabolismIntake 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.
Toxicity ValuesLD50: 1267 mg/kg (Oral, Rat) LD50: 175 mg/kg (Intravenous, Rat)
Lethal DoseNone
Carcinogenicity (IARC Classification)Ingested nitrate or nitrite under conditions that result in endogenous nitrosation is probably carcinogenic to humans (Group 2A).
Minimum Risk LevelNone
Health EffectsNitrate and nitrite poisoning causes methemoglobinemia. Nitrites may cause pregnancy complications and developmental effects. They may also be carcinogenic. (L1137)
TreatmentMethemoglobinemia 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.
Reference
  1. 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 ]

From T3DB


Taxonomic Classification

KingdomInorganic compounds
SuperclassMixed metal/non-metal compounds
ClassAlkali metal oxoanionic compounds
SubclassAlkali metal nitrates
Intermediate Tree NodesNot available
Direct ParentAlkali metal nitrates
Alternative Parents
Molecular FrameworkNot available
SubstituentsAlkali metal nitrate - Inorganic sodium salt - Inorganic oxide - Inorganic salt
DescriptionThis compound belongs to the class of inorganic compounds known as alkali metal nitrates. These are inorganic compounds in which the largest oxoanion is nitrate, and in which the heaviest atom not in an oxoanion is an alkali metal.

From ClassyFire


Targets

General Function:
Oxygen transporter activity
Specific Function:
Involved in oxygen transport from the lung to the various peripheral tissues.
Gene Name:
HBA1
Uniprot ID:
P69905
Molecular Weight:
15257.405 Da
References
  1. Wikipedia. Methemoglobinemia. Last Updated 22 July 2009. : http://en.wikipedia.org/wiki/Methemoglobinemia [18203719 ]
General Function:
Oxygen transporter activity
Specific Function:
Involved in oxygen transport from the lung to the various peripheral tissues.LVV-hemorphin-7 potentiates the activity of bradykinin, causing a decrease in blood pressure.Spinorphin: functions as an endogenous inhibitor of enkephalin-degrading enzymes such as DPP3, and as a selective antagonist of the P2RX3 receptor which is involved in pain signaling, these properties implicate it as a regulator of pain and inflammation.
Gene Name:
HBB
Uniprot ID:
P68871
Molecular Weight:
15998.34 Da
References
  1. Wikipedia. Methemoglobinemia. Last Updated 22 July 2009. : http://en.wikipedia.org/wiki/Methemoglobinemia [18203719 ]
General Function:
Oxygen transporter activity
Specific Function:
Involved in oxygen transport from the lung to the various peripheral tissues.
Gene Name:
HBD
Uniprot ID:
P02042
Molecular Weight:
16055.41 Da
References
  1. Wikipedia. Methemoglobinemia. Last Updated 22 July 2009. : http://en.wikipedia.org/wiki/Methemoglobinemia [18203719 ]
General Function:
Oxygen transporter activity
Specific Function:
The epsilon chain is a beta-type chain of early mammalian embryonic hemoglobin.
Gene Name:
HBE1
Uniprot ID:
P02100
Molecular Weight:
16202.71 Da
References
  1. Wikipedia. Methemoglobinemia. Last Updated 22 July 2009. : http://en.wikipedia.org/wiki/Methemoglobinemia [18203719 ]
General Function:
Oxygen transporter activity
Specific Function:
Gamma chains make up the fetal hemoglobin F, in combination with alpha chains.
Gene Name:
HBG1
Uniprot ID:
P69891
Molecular Weight:
16140.37 Da
References
  1. Wikipedia. Methemoglobinemia. Last Updated 22 July 2009. : http://en.wikipedia.org/wiki/Methemoglobinemia [18203719 ]
General Function:
Gamma chains make up the fetal hemoglobin F, in combination with alpha chains.
Specific Function:
Heme binding
Gene Name:
HBG2
Uniprot ID:
P69892
Molecular Weight:
16126.35 Da
References
  1. Wikipedia. Methemoglobinemia. Last Updated 22 July 2009. : http://en.wikipedia.org/wiki/Methemoglobinemia [18203719 ]
General Function:
Oxygen transporter activity
Gene Name:
HBM
Uniprot ID:
Q6B0K9
Molecular Weight:
15617.97 Da
References
  1. Wikipedia. Methemoglobinemia. Last Updated 22 July 2009. : http://en.wikipedia.org/wiki/Methemoglobinemia [18203719 ]
General Function:
Oxygen transporter activity
Gene Name:
HBQ1
Uniprot ID:
P09105
Molecular Weight:
15507.575 Da
References
  1. Wikipedia. Methemoglobinemia. Last Updated 22 July 2009. : http://en.wikipedia.org/wiki/Methemoglobinemia [18203719 ]
General Function:
Oxygen transporter activity
Specific Function:
The zeta chain is an alpha-type chain of mammalian embryonic hemoglobin.
Gene Name:
HBZ
Uniprot ID:
P02008
Molecular Weight:
15636.845 Da
References
  1. Wikipedia. Methemoglobinemia. Last Updated 22 July 2009. : http://en.wikipedia.org/wiki/Methemoglobinemia [18203719 ]
General Function:
Zinc ion binding
Specific Function:
Essential for bone resorption and osteoclast differentiation (By similarity). Reversible hydration of carbon dioxide. Can hydrate cyanamide to urea. Involved in the regulation of fluid secretion into the anterior chamber of the eye. Contributes to intracellular pH regulation in the duodenal upper villous epithelium during proton-coupled peptide absorption. Stimulates the chloride-bicarbonate exchange activity of SLC26A6.
Gene Name:
CA2
Uniprot ID:
P00918
Molecular Weight:
29245.895 Da
References
  1. Vullo D, De Luca V, Scozzafava A, Carginale V, Rossi M, Supuran CT, Capasso C: Anion inhibition studies of the fastest carbonic anhydrase (CA) known, the extremo-CA from the bacterium Sulfurihydrogenibium azorense. Bioorg Med Chem Lett. 2012 Dec 1;22(23):7142-5. doi: 10.1016/j.bmcl.2012.09.065. Epub 2012 Sep 27. [23072866 ]
General Function:
Zinc ion binding
Specific Function:
Reversible hydration of carbon dioxide. Can hydrates cyanamide to urea.
Gene Name:
CA1
Uniprot ID:
P00915
Molecular Weight:
28870.0 Da
References
  1. Vullo D, De Luca V, Scozzafava A, Carginale V, Rossi M, Supuran CT, Capasso C: Anion inhibition studies of the fastest carbonic anhydrase (CA) known, the extremo-CA from the bacterium Sulfurihydrogenibium azorense. Bioorg Med Chem Lett. 2012 Dec 1;22(23):7142-5. doi: 10.1016/j.bmcl.2012.09.065. Epub 2012 Sep 27. [23072866 ]

From T3DB