| Record Information |
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| Version | 5.0 |
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| Status | Detected and Quantified |
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| Creation Date | 2006-08-16 14:01:37 UTC |
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| Update Date | 2023-02-21 17:15:38 UTC |
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| HMDB ID | HMDB0001371 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | Nitrogen |
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| Description | Elemental nitrogen is a colorless, odorless, tasteless and mostly inert diatomic gas at standard conditions, constituting 78% by volume of Earth's atmosphere. Nitrogen occurs in all living organisms. It is a constituent element of amino acids and therefore of proteins and nucleic acids (DNA and RNA). Nitrogen is found in the chemical structure of almost all neurotransmitters and is a key component of alkaloids. Specific bacteria (e.g. Rhizobium trifolium) possess nitrogenase enzymes which can fix atmospheric nitrogen into a form (ammonium ion) which is chemically useful to higher organisms. Animals use nitrogen-containing amino acids from plant sources, as starting materials for all nitrogen-compound animal biochemistry, including the manufacture of proteins and nucleic acids. Animal metabolism of NO (nitric oxide) results in production of nitrite. Animal metabolism of nitrogen in proteins generally results in excretion of urea, while animal metabolism of nucleic acids results in excretion of urea and uric acid. The characteristic odor of animal flesh decay is caused by nitrogen-containing long-chain amines, such as putrescine and cadaverine. Decay of organisms and their waste products may produce small amounts of nitrate, but most decay eventually returns nitrogen content to the atmosphere, as molecular nitrogen. The circulation of nitrogen from the atmosphere through organics and then back to the atmosphere is commonly referred to as the nitrogen cycle. Nitrogen can be measured in urine with the Kjeldahl method or by spectrophotometric methods (enzymic tests). Total urinary nitrogen is calculated based on urea urinary nitrogen quantified with these methods. |
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| Structure | |
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| Synonyms | | Value | Source |
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| Molecular nitrogen | ChEBI | | N2 | ChEBI | | N#N | ChEBI | | Nitrogen | ChEBI | | Dinitrogen | HMDB | | Nitrogen gas | HMDB |
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| Chemical Formula | N2 |
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| Average Molecular Weight | 28.0134 |
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| Monoisotopic Molecular Weight | 28.00614801 |
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| IUPAC Name | diazyne |
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| Traditional Name | nitrogen |
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| CAS Registry Number | 7727-37-9 |
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| SMILES | N#N |
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| InChI Identifier | InChI=1S/N2/c1-2 |
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| InChI Key | IJGRMHOSHXDMSA-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of inorganic compounds known as other non-metal nitrides. These are inorganic compounds of nitrogen where nitrogen has a formal oxidation state of -3, and the heaviest atom bonded to it belongs to the class of 'other non-metals'. |
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| Kingdom | Inorganic compounds |
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| Super Class | Homogeneous non-metal compounds |
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| Class | Other non-metal organides |
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| Sub Class | Other non-metal nitrides |
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| Direct Parent | Other non-metal nitrides |
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| Alternative Parents | |
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| Substituents | - Other non-metal nitride
- Inorganic nitride
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| Molecular Framework | Not Available |
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| External Descriptors | |
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| Ontology |
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| Physiological effect | Not Available |
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| Disposition | |
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| Process | |
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| Role | |
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| Physical Properties |
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| State | Liquid |
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| Experimental Molecular Properties | | Property | Value | Reference |
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| Melting Point | -210.01 °C | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | 18.1 mg/mL at 21 °C | Not Available | | LogP | 0.67 | HANSCH,C ET AL. (1995) |
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| Experimental Chromatographic Properties | Not Available |
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| Predicted Molecular Properties | |
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| Predicted Chromatographic Properties | Predicted Collision Cross Sections| Predictor | Adduct Type | CCS Value (Å2) | Reference |
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| DeepCCS | [M+H]+ | 110.008 | 30932474 | | DeepCCS | [M-H]- | 108.271 | 30932474 | | DeepCCS | [M-2H]- | 143.431 | 30932474 | | DeepCCS | [M+Na]+ | 116.759 | 30932474 |
Predicted Retention Times Underivatized| Chromatographic Method | Retention Time | Reference |
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| Predicted by Siyang on May 30, 2022 | 8.271 minutes | 33406817 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 269.8 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 940.0 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 421.9 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 186.8 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 345.5 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 193.9 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 311.5 seconds | 40023050 | | BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid | 399.1 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 571.8 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 656.0 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 172.3 seconds | 40023050 | | UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid | 767.3 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 279.1 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 365.0 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 686.9 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 356.1 seconds | 40023050 | | Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water | 294.8 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatized| Metabolite | SMILES | Kovats RI Value | Column Type | Reference |
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| Nitrogen | N#N | 1105.7 | Standard polar | 33892256 | | Nitrogen | N#N | 353.8 | Standard non polar | 33892256 | | Nitrogen | N#N | 412.4 | Semi standard non polar | 33892256 |
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| Spectra |
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| GC-MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted GC-MS | Predicted GC-MS Spectrum - Nitrogen GC-MS (Non-derivatized) - 70eV, Positive | splash10-004i-9000000000-900558b878d696839ddd | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Nitrogen GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | MS | Mass Spectrum (Electron Ionization) | splash10-004i-9000000000-6369f2c7b3a3b0e3772c | 2015-03-01 | Not Available | View Spectrum |
MS/MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nitrogen 10V, Positive-QTOF | splash10-004i-9000000000-096cae140ae566643e88 | 2015-09-15 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nitrogen 20V, Positive-QTOF | splash10-004i-9000000000-096cae140ae566643e88 | 2015-09-15 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nitrogen 40V, Positive-QTOF | splash10-004i-9000000000-096cae140ae566643e88 | 2015-09-15 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nitrogen 10V, Negative-QTOF | splash10-004i-9000000000-6d8e7ecefdead45cc87d | 2015-09-15 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nitrogen 20V, Negative-QTOF | splash10-004i-9000000000-6d8e7ecefdead45cc87d | 2015-09-15 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nitrogen 40V, Negative-QTOF | splash10-004i-9000000000-6d8e7ecefdead45cc87d | 2015-09-15 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nitrogen 10V, Positive-QTOF | splash10-004i-9000000000-1fb6bb5f9fe3af7d141e | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nitrogen 20V, Positive-QTOF | splash10-004i-9000000000-1fb6bb5f9fe3af7d141e | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nitrogen 40V, Positive-QTOF | splash10-004i-9000000000-1fb6bb5f9fe3af7d141e | 2021-09-24 | Wishart Lab | View Spectrum |
IR Spectra| Spectrum Type | Description | Deposition Date | Source | View |
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| Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+) | 2023-02-03 | FELIX lab | View Spectrum | | Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+) | 2023-02-03 | FELIX lab | View Spectrum |
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| Biological Properties |
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| Cellular Locations | - Cytoplasm (predicted from logP)
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| Biospecimen Locations | |
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| Tissue Locations | |
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| Pathways | |
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| Normal Concentrations |
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| Urine | Detected and Quantified | 161827.316 +/- 35697.202 umol/mmol creatinine | Adult (>18 years old) | Both | Normal | | details | | Urine | Detected and Quantified | 231793.832 +/- 43788.568 umol/mmol creatinine | Adult (>18 years old) | Both | Normal | | details | | Urine | Detected and Quantified | 30842.383 +/- 7615.403 umol/mmol creatinine | Adult (>18 years old) | Both | Normal | | details | | Urine | Detected and Quantified | 32106.667 +/- 15380 umol/mmol creatinine | Adolescent (13-18 years old) | Both | Normal | | details | | Urine | Detected and Quantified | 35866.667 +/- 9333.333 umol/mmol creatinine | Children (1 - 13 years old) | Both | Normal | | details | | Urine | Detected and Quantified | 41866.667 +/- 11333.333 umol/mmol creatinine | Children (1 - 13 years old) | Both | Normal | | details | | Urine | Detected and Quantified | 23560.153 +/- 4521.646 umol/mmol creatinine | Adult (>18 years old) | Female | Normal | | details | | Urine | Detected and Quantified | 27106.0754 +/- 5473.571 umol/mmol creatinine | Adult (>18 years old) | Female | Normal | | details | | Urine | Detected and Quantified | 30461.612 +/- 4759.627 umol/mmol creatinine | Adult (>18 years old) | Male | Normal | | details | | Urine | Detected and Quantified | 35030.854 +/- 7853.384 umol/mmol creatinine | Adult (>18 years old) | Male | Normal | | details |
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| Abnormal Concentrations |
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| Urine | Detected and Quantified | 171346.570 +/- 38077.0155 umol/mmol creatinine | Adult (>18 years old) | Female | Pregnancy | | details |
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| Associated Disorders and Diseases |
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| Disease References | | Pregnancy |
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- Mikkelsen TB, Osler M, Olsen SF: Validity of protein, retinol, folic acid and n-3 fatty acid intakes estimated from the food-frequency questionnaire used in the Danish National Birth Cohort. Public Health Nutr. 2006 Sep;9(6):771-8. [PubMed:16925883 ]
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| Associated OMIM IDs | None |
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| External Links |
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| DrugBank ID | Not Available |
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| Phenol Explorer Compound ID | Not Available |
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| FooDB ID | Not Available |
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| KNApSAcK ID | Not Available |
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| Chemspider ID | Not Available |
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| KEGG Compound ID | C00697 |
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| BioCyc ID | NITROGEN-MOLECULE |
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| BiGG ID | Not Available |
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| Wikipedia Link | Nitrogen |
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| METLIN ID | Not Available |
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| PubChem Compound | 947 |
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| PDB ID | Not Available |
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| ChEBI ID | 17997 |
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| Food Biomarker Ontology | Not Available |
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| VMH ID | Not Available |
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| MarkerDB ID | MDB00029899 |
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| Good Scents ID | Not Available |
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| References |
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| Synthesis Reference | Not Available |
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| Material Safety Data Sheet (MSDS) | Download (PDF) |
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| General References | - Balafa C, Smith-Thomas L, Phillips J, Moustafa M, George E, Blount M, Nicol S, Westgate G, MacNeil S: Dopa oxidase activity in the hair, skin and ocular melanocytes is increased in the presence of stressed fibroblasts. Exp Dermatol. 2005 May;14(5):363-72. [PubMed:15854130 ]
- Konya C, Sanada H, Sugama J, Kitayama Y, Ishikawa S, Togashi H, Tamura S: Skin debris and micro-organisms on the periwound skin of pressure ulcers and the influence of periwound cleansing on microbial flora. Ostomy Wound Manage. 2005 Jan;51(1):50-9. [PubMed:15695835 ]
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