{"hq_id":"hq-c-org-000410","name":"4-Chloro-o-toluidine","context":"human_adult","timestamp":"2026-10-27T21:14:12.677Z","derived_by":{"label":"ALETHEIA-derived","engine":{"commit":"a1c6e861599cc34c5db0318ea1a7ac13a327e074","commit_source":"vercel_env","tree_clean":null},"params":{"sha256":"88ae43137e58ed0cd65588409efefee0d90253da01ef4459bf9ee25f888ec9a0","files":["axes.json","context-specificity.json","regulatory-mappings.json","synthesis-params.json","thresholds.json"]},"clock":{"year":2026},"inputs":[{"id":"hq-c-org-000410","sha256":"0071b5eed0c475220a398affd2300a441b63e3ea312e2ba31d0b2c288c88a476"}]},"risk_level":"severe","risk_profile":{"magnitude":{"mean":0.705265,"weightedMean":0.705265,"std_dev":0.06154,"confidence_interval_95":[0.625,0.8],"source_positions":[{"source":"EPA CTX / CalEPA","year":2021,"value":0.8,"weight":0.30176},{"source":"US EPA","year":2010,"value":0.75,"weight":0.41},{"source":"IARC","year":2010,"value":0.7,"weight":0.41},{"source":"EPA CTX / NTP RoC","year":2021,"value":0.65,"weight":0.30176},{"source":"HQ_DIRECT","year":2026,"value":0.625,"weight":0.35}]},"confidence":{"mean":0.756849,"weightedMean":0.756849,"std_dev":0.127359,"confidence_interval_95":[0.5,0.82],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.5,"weight":0.35},{"source":"IARC","year":2010,"value":0.82,"weight":0.41},{"source":"US EPA","year":2010,"value":0.82,"weight":0.41},{"source":"EPA CTX / NTP RoC","year":2021,"value":0.82,"weight":0.30176},{"source":"EPA CTX / CalEPA","year":2021,"value":0.82,"weight":0.30176}]},"recency":{"mean":0.553755,"weightedMean":0.553755,"std_dev":0.228859,"confidence_interval_95":[0.368,1],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":1,"weight":0.35},{"source":"IARC","year":2010,"value":0.5,"weight":0.41},{"source":"US EPA","year":2010,"value":0.5,"weight":0.41},{"source":"EPA CTX / NTP RoC","year":2021,"value":0.368,"weight":0.30176},{"source":"EPA CTX / CalEPA","year":2021,"value":0.368,"weight":0.30176}]},"methodology":{"mean":0.940796,"weightedMean":0.940796,"std_dev":0.119399,"confidence_interval_95":[0.7,1],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.7,"weight":0.35},{"source":"IARC","year":2010,"value":1,"weight":0.41},{"source":"US EPA","year":2010,"value":1,"weight":0.41},{"source":"EPA CTX / NTP RoC","year":2021,"value":1,"weight":0.30176},{"source":"EPA CTX / CalEPA","year":2021,"value":1,"weight":0.30176}]},"specificity":{"mean":0.783549,"weightedMean":0.783549,"std_dev":0.067659,"confidence_interval_95":[0.75,0.92],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.92,"weight":0.35},{"source":"IARC","year":2010,"value":0.75,"weight":0.41},{"source":"US EPA","year":2010,"value":0.75,"weight":0.41},{"source":"EPA CTX / NTP RoC","year":2021,"value":0.75,"weight":0.30176},{"source":"EPA CTX / CalEPA","year":2021,"value":0.75,"weight":0.30176}]},"consensus":{"exists":false,"strength":0.589733,"disagreement_magnitude":0.308845,"warning":null}},"interpretation":{"summary":"Regulatory agencies show substantial disagreement. EPA CTX / CalEPA classifies as higher risk (80th percentile), while HQ_DIRECT concludes lower risk (63th percentile).","confidence_note":"Moderate-quality evidence base. Disagreement reflects methodological and interpretive differences, not data quality issues.","context_note":null,"warning":null},"sources":[{"id":"iarc_coot_vol99_2010","type":"iarc_monograph","title":"IARC Monographs Volume 99 (2010): 4-Chloro-o-Toluidine — Group 2A (probably carcinogenic to humans); Bladder Cancer in German Chemical Plant Workers; Chlordimeform Manufacturing Cohort; Aromatic Amine Mechanism","year":2010,"url":"https://www.ncbi.nlm.nih.gov/books/NBK390838/"},{"id":"stasik_coot_bladder_1988","type":"study","title":"Stasik: Carcinoma of the Urinary Bladder in a 4-Chloro-o-Toluidine Cohort — Key Epidemiological Study; German Chemical Manufacturing Workers; Bladder Cancer Excess","year":1988},{"id":"reach_coot_restriction","type":"regulatory","title":"ECHA REACH Restriction: 4-Chloro-o-Toluidine in Textile Articles — Aromatic Amine Bladder Carcinogen; Concentration Limits; Azo Dye Cleavage Products; EU Textile Regulations","year":2014},{"id":"r60-2026-09-30-d918-oehha-prop65-list-csv-own-url","type":"regulatory","title":"PROPOSITION 65 LIST OF CARCINOGENS OR REPRODUCTIVE TOXICANTS","year":2026,"url":"https://oehha.ca.gov/sites/default/files/media/2025-01/p65chemicalslist.csv"},{"id":"r60-2026-09-26-d867-cc1-iarc-list-of-classifications-loc-app","type":"regulatory","title":"IARC Monographs, List of Classifications","year":2026,"url":"https://monographs.iarc.who.int/list-of-classifications"},{"id":"r60-2026-10-02-d983-ac4-ctx-apis-data-domains","type":"regulatory","title":"Computational Toxicology and Exposure APIs: Data Domains (EPA CCTE)","url":"https://www.epa.gov/comptox-tools/computational-toxicology-and-exposure-apis-data-domains"},{"id":"r60-2026-10-02-d983-ac4-ctx-dashboard-release-notes","type":"regulatory","title":"CompTox Chemicals Dashboard: Release Notes (EPA)","url":"https://www.epa.gov/chemical-research/comptox-chemicals-dashboard-release-notes"},{"id":"pubchem-computed-cid-7251","type":"database","title":"PubChem computed properties for CID 7251 (computed, not measured; as recorded by PubChem)","year":2026,"url":"https://pubchem.ncbi.nlm.nih.gov/compound/7251"},{"id":"r60-2026-10-02-d-955-s9-d955-s9-osha-table-z-1","type":"regulatory","title":"Permissible Exposure Limits – OSHA Annotated Table Z-1","url":"https://www.osha.gov/annotated-pels/table-z-1"},{"id":"pubchem-exp-cameo-chemicals-cid-7251","type":"database","title":"CAMEO Chemicals, as recorded by PubChem (Experimental Properties, CID 7251; where-to-look, not a source of this value)","year":2026,"url":"https://pubchem.ncbi.nlm.nih.gov/rest/pug_view/data/compound/7251/JSON?heading=Experimental+Properties"},{"id":"pubchem-exp-ilo-who-international-chemical-safety-ca-cid-7251","type":"database","title":"ILO-WHO International Chemical Safety Cards (ICSCs), as recorded by PubChem (Experimental Properties, CID 7251; where-to-look, not a source of this value)","year":2026,"url":"https://pubchem.ncbi.nlm.nih.gov/rest/pug_view/data/compound/7251/JSON?heading=Experimental+Properties"},{"id":"pubchem-exp-haz-map-information-on-hazardous-chemica-cid-7251","type":"database","title":"Haz-Map, Information on Hazardous Chemicals and Occupational Diseases, as recorded by PubChem (Experimental Properties, CID 7251; where-to-look, not a source of this value)","year":2026,"url":"https://pubchem.ncbi.nlm.nih.gov/rest/pug_view/data/compound/7251/JSON?heading=Experimental+Properties"},{"id":"ctx_pred_dtxsid1041508","type":"reference","title":"EPA CompTox CTX API: predicted properties for DTXSID1041508 (4-Chloro-o-toluidine)","url":"https://comptox.epa.gov/ctx-api/chemical/property/predicted/search/by-dtxsid/DTXSID1041508"},{"id":"r60-2026-10-01-echa-annex-vi-clp-table-atp23-xlsx","type":"regulatory","title":"ECHA Annex VI to CLP: the unofficial Excel table (up to and including the 23rd ATP)","url":"https://echa.europa.eu/documents/10162/17218/annex_vi_clp_table_atp23_en.xlsx/b3816c13-81a3-816d-773a-62e88c4e2700?t=1761727004499"},{"id":"pubchem-computed-structure-cid-7251","type":"database","title":"PubChem computed structure descriptors for CID 7251 (computed, not measured; as recorded by PubChem)","year":2026,"url":"https://pubchem.ncbi.nlm.nih.gov/compound/7251"},{"id":"r60-2026-10-18-a5oj-eu-cellar-32008r1272-oj","type":"regulatory","title":"Regulation (EC) No 1272/2008 of the European Parliament and of the Council of 16 December 2008 on classification, labelling and packaging of substances and mixtures, amending and repealing Directives 67/548/EEC and 1999/45/EC, and amending Regulation (EC) No 1907/2006: Annex VI, Part 3, Table 3.1 (Official Journal L 353, 31.12.2008)","year":2008,"url":"https://publications.europa.eu/resource/celex/32008R1272"}],"sources_scope":"record","derived_markers":[],"warnings":["year_inferred:EPA CTX / NTP RoC:2021","year_inferred:EPA CTX / CalEPA:2021","unmapped_classification:US EPA (CompTox genotoxicity summary):epa comptox computed genotoxicity summary: positiv","unmapped_classification:US EPA (CompTox genotoxicity summary):epa comptox computed genotoxicity summary: positiv","unmapped_classification:Denmark, as recorded by ToxValDB:skin sensitization: skinsens1 (score: high)"],"meta":{"synthesis_version":"1.1.0","config_version":"1.1.0","n_sources":5,"db_version":52,"warnings":["year_inferred:EPA CTX / NTP RoC:2021","year_inferred:EPA CTX / CalEPA:2021","unmapped_classification:US EPA (CompTox genotoxicity summary):epa comptox computed genotoxicity summary: positiv","unmapped_classification:US EPA (CompTox genotoxicity summary):epa comptox computed genotoxicity summary: positiv","unmapped_classification:Denmark, as recorded by ToxValDB:skin sensitization: skinsens1 (score: high)"]},"synthesized_at":"2026-10-27T21:13:47.983Z","schema":"synthesis","_notice":"ALETHEIA output is reference data, not professional advice. Not a substitute for primary agency sources or qualified professionals. See https://aletheia.holisticquality.io/disclaimer.","_disclaimer_url":"https://aletheia.holisticquality.io/disclaimer","available_contexts":["human_adult","exposure_inhalation","aquatic_life","human_teen","human_elderly","human_pregnant"]}