{"hq_id":"hq-c-org-000669","name":"Octamethylcyclotetrasiloxane (D4, cyclic siloxane)","context":"human_adult","risk_level":"unknown","magnitude_asserted":false,"schema":"legacy","note":"Synthesis unavailable: compound lacks vectorizable regulatory classifications. Raw safety data returned.","data":{"risk_level":"unknown","summary":"unknown: the served band was computed from another substance and was removed (D-872)."},"meta":{"synthesis_version":"n/a","timestamp":"2026-10-27T19:56:22.202Z"},"_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","human_teen","human_elderly","human_pregnant"]}