Consensus flow list

Carbon-14

fo-349eb32aabc2d9b4

Identity

Type
Isotope
CAS
14762-75-5
EC
—
Origin
EF 3.1 hybrid_name_cas_v1
Changes
52 across every transformer

Structure

Structure diagram for Carbon-14

This substance carries 4 candidate structures; the diagram is the first one RDKit could parse, not a settled answer.

Alternative labels

3

Properties

PropertyValue
Decay mode chemrof:decay_mode β-=100%
Elemental charge chemrof:elemental_charge 0
Half life chemrof:half_life 5700.0
Has element chemrof:has_element {'@id': 'https://vocab.brightway.dev/flow-objects/fo-30e9695511cfde8c'}
InChI2D key string chemrof:inchi2d_key_string OKTJSMMVPCPJKN-NJFSPNSNSA-N, VNWKTOKETHGBQD-NJFSPNSNSA-N
InChI2D string chemrof:inchi2d_string InChI=1S/C/i1+2, InChI=1S/CH4/h1H4, InChI=1S/CH4/h1H4/i1+2
Isomeric SMILES string chemrof:isomeric_smiles_string [14CH4], [14C]
Isotope isotope {"nuclide":"14C","mass_number":14,"atomic_mass_and_uncertainty_u":"14.00324198862 ± 0.00000000403","half_life_and_uncertainty":"5.70 ky ± 0.03","decay_modes":"β-=100%","discovery_year":"1936","specific_activity_bq_per_g":"165721258546.73","specific_activity_bq_per_g_value":165721258546.73,"half_life_chemlin":"5700(30) years","chemlin_url":"https://www.chemlin.org/isotope/carbon-14","isomer_resolution":{"wanted_nuclide":"C-14","expected_half_life_days":2081925.0,"attempted_slugs":["14"],"attempted_urls":["https://www.chemlin.org/isotope/carbon-14"],"strategy":"half_life_agrees_with_pubchem","selected_slug":"carbon-14","selected_half_life":"5700(30) years","selected_half_life_days":2081925.0,"half_life_ratio_to_pubchem":1.0,"alternates":[]},"symbol":"C","isomeric_state":"","metastable":false}
Isotope lookup isotope_lookup {"is_kbq_candidate":true,"matched":true,"matched_on":"Carbon-14","claimed_nuclide":"C-14","resolved_nuclide":"C-14","state_resolution":{"claimed_state":"","selected_state":"","strategy":"state_taken_as_written","candidates":[]},"checks":[{"check":"ground_state_does_not_decay_by_isomeric_transition","passed":true,"detail":"β-=100%"},{"check":"half_life_sources_agree","passed":true,"detail":{"pubchem_days":2081925.0,"chemlin_days":2081925.0,"ratio":1.0}}],"reason":"","source":"pubchem_pug_view_annotation_heading","sources":["pubchem_pug_view_annotation_heading","https://www.chemlin.org"],"isomer_resolution":{"wanted_nuclide":"C-14","expected_half_life_days":2081925.0,"attempted_slugs":["14"],"attempted_urls":["https://www.chemlin.org/isotope/carbon-14"],"strategy":"half_life_agrees_with_pubchem","selected_slug":"carbon-14","selected_half_life":"5700(30) years","selected_half_life_days":2081925.0,"half_life_ratio_to_pubchem":1.0,"alternates":[]}}
IUPAC name chemrof:IUPAC_name carbane
Molecular formula chemrof:molecular_formula CH4, [14C]
Nucleon number chemrof:nucleon_number 14
Relationships relationships {"parent_element_flow_object_id":"fo-30e9695511cfde8c","relationship_type":"isotope_of"}
SMILES string chemrof:smiles_string C, [C]
Symbol chemrof:symbol C

Known URLs

11

Where else this substance is described. Collected while the pipeline resolved it — from ChEBI's cross-references, from PubChem's identifier list, and from the CAS number — so a link here is a record the merge actually read, not a search it suggests.

Resource URL Recorded by
CAS Common Chemistry https://commonchemistry.cas.org/detail?cas_rn=14762-75-5 enrich_references.chebi_xrefs
ChEBI https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:36927 enrich_references.chebi_id_link
ChemLin https://www.chemlin.org —
ChemLin https://www.chemlin.org/isotope/carbon-14 —
comptox.epa.gov https://comptox.epa.gov/dashboard/DTXSID20873970 enrich_references.pubchem_identifier_url
jglobal.jst.go.jp http://jglobal.jst.go.jp/en/redirect?Nikkaji_No=J324.071A enrich_references.pubchem_identifier_url
ncithesaurus.nci.nih.gov https://ncithesaurus.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI_Thesaurus&ns=ncit&code=C1638 enrich_references.pubchem_identifier_url
PubChem https://pubchem.ncbi.nlm.nih.gov/compound/26873 enrich_references.pubchem_compound
PubChem https://pubchem.ncbi.nlm.nih.gov/element/6 —
PubChem https://pubchem.ncbi.nlm.nih.gov/rest/pug_view/data/element/6/JSON —
Wikipedia https://en.wikipedia.org/wiki/Carbon-14 enrich_references.chebi_xrefs

Elementary flows

14
Flow Context Source Unit CFs
32ccfa96-6556-11dd-ad8b-0800200c9a66 Environmental → Air → Aircraft cruise height EF 3.1 kBq 1
08a91e70-3ddc-11dd-9259-0050c2490048 Environmental → Air → Ground level → Urban (>1000 people/square mile) EF 3.1 kBq 1
08a91e70-3ddc-11dd-9258-0050c2490048 Environmental → Air → Long-term EF 3.1 kBq 1
08a91e70-3ddc-11dd-925a-0050c2490048 Environmental → Air → Medium stack, <150 meters → Rural (<1000 people/square mile) EF 3.1 kBq 1
08a91e70-3ddc-11dd-9257-0050c2490048 Environmental → Air → Unknown EF 3.1 kBq 1
32ccfa95-6556-11dd-ad8b-0800200c9a66 Environmental → Ground → Agricultural EF 3.1 kBq 0
32ccfa97-6556-11dd-ad8b-0800200c9a66 Environmental → Ground → Non-agricultural EF 3.1 kBq 0
32ccfa98-6556-11dd-ad8b-0800200c9a66 Environmental → Ground → Unknown EF 3.1 kBq 0
08a91e70-3ddc-11dd-925c-0050c2490048 Environmental → Water → Long-term EF 3.1 kBq 1
08a91e70-3ddc-11dd-9ded-0050c2490048 Environmental → Water → Ocean EF 3.1 kBq 1
81a4927f5825d8cfa1ae59fa739123e55e3fe8b9 Environmental → Water → River bafu algorithm addition kBq 0
08a91e70-3ddc-11dd-925b-0050c2490048 Environmental → Water → Surface water EF 3.1 kBq 1
dc8f155c6a45265150e1ceb85c5da5bea102632d Environmental → Water → Unconfined aquifer ecoinvent algorithm addition kBq 0
08a91e70-3ddc-11dd-925d-0050c2490048 Environmental → Water → Unknown EF 3.1 kBq 1

History

Everything that changed this substance (52 changes)

Open the changes page

Full record

Flow object JSON 
{
  "flow_object_id": "fo-349eb32aabc2d9b4",
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  ],
  "altLabel": [
    {
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        "InChI=1S/CH4/h1H4": [
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      "rdfs:label": "InChI",
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    "https://w3id.org/chemrof/IUPAC_name": {
      "@id": "https://w3id.org/chemrof/IUPAC_name",
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    },
    "isotope_lookup": {
      "is_kbq_candidate": true,
      "matched": true,
      "matched_on": "Carbon-14",
      "claimed_nuclide": "C-14",
      "resolved_nuclide": "C-14",
      "state_resolution": {
        "claimed_state": "",
        "selected_state": "",
        "strategy": "state_taken_as_written",
        "candidates": []
      },
      "checks": [
        {
          "check": "ground_state_does_not_decay_by_isomeric_transition",
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      "isomer_resolution": {
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        "selected_half_life": "5700(30) years",
        "selected_half_life_days": 2081925.0,
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        "alternates": []
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    },
    "relationships": {
      "parent_element_flow_object_id": "fo-30e9695511cfde8c",
      "relationship_type": "isotope_of"
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    "isotope": {
      "nuclide": "14C",
      "mass_number": 14,
      "atomic_mass_and_uncertainty_u": "14.00324198862 ± 0.00000000403",
      "half_life_and_uncertainty": "5.70 ky ± 0.03",
      "decay_modes": "β-=100%",
      "discovery_year": "1936",
      "specific_activity_bq_per_g": "165721258546.73",
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      "chemlin_url": "https://www.chemlin.org/isotope/carbon-14",
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        "selected_half_life_days": 2081925.0,
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        "alternates": []
      },
      "symbol": "C",
      "isomeric_state": "",
      "metastable": false
    },
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      "rdfs:label": "nucleon number",
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