Tartaric acid

Safety Summary

Regulatory Status

Sources

These citations are the ones recorded for the human adult context.

• FDA GRAS: Tartaric Acid (E334) — winemaking dominant acid; cream of tartar; GRAS acidulant; ADI 30 mg/kg; 15-20% GI absorption; renal excretion; sour candy; grape juice natural source (2021) REGULATORY · 2021
• EFSA ANS Panel: Re-evaluation of Tartaric Acid (E 334) — ADI 30 mg/kg bw/day; osmotic laxative high dose; wine pH buffering; potassium bitartrate; grape pomace recovery; dental erosion; renal excretion biomarker (2020) REGULATORY · 2020
• identity database ECHA CHEM, Download all substances: REACH registrations (ECHA's own list of REACH-registered substances) REGULATORY · 2026
• OEHHA Proposition 65 List of Carcinogens or Reproductive Toxicants (CSV, list date 31-Jul-26) REGULATORY
• Permissible Exposure Limits – OSHA Annotated Table Z-1 REGULATORY
• where to look Haz-Map, Information on Hazardous Chemicals and Occupational Diseases, as recorded by PubChem (Experimental Properties, CID 444305; where-to-look, not a source of this value) DATABASE · 2026
• where to look PAC Chemical Database, U.S. Department of Energy, as recorded by PubChem (Experimental Properties, CID 444305; where-to-look, not a source of this value) DATABASE · 2026
• EPA CompTox CTX API: predicted properties for DTXSID8023632 (Tartaric acid) REFERENCE

Same data as the API response, which is open and needs no key. The full per-record source list is available to authenticated callers.