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d-Tartaric acid

CAS 106449-07-4 · 40/100 · High conf.

Also registered as 5 other CAS numbers

1007601-97-9 · 1150316-16-7 · 87-69-4 · 133-37-9 · 147-71-7

d-Tartaric acid chemical structure

Concern score

40/100Moderate concern based on regulatory listings.
High confidence

d-Tartaric acid in plain language

What it is

On cosmetic ingredient lists it appears as “Tartaric acid”.

Also known as Tartaric acid · L-Tartaric acid · Tartaric acid, d- · (2S,3S)-2,3-Dihydroxybutanedioic acid · Butanedioic acid, 2,3-DIHYDROXY-, (2S,3S)- · Tartaric acid, (-)-

Show all 21 names

Unnatural tartaric acid · Unusual tartaric acid · (-)-(S,S)-Tartaric acid · (-)-D-Tartaric acid · (-)-Weinsaure · (2S,3S)-(-)-Tartaric acid · (2S,3S)-2,3-Dihydroxysuccinic acid · 2,3-Dihydroxybutanedioic acid · Acide (-)-tartrique · C4H6O6 · D-threaric acid · G95238FE · GlyTouCan:G95238FE · S-Bacampicillin · liquid tar

What it does

Used in cosmetics as a pH buffer and a fragrance ingredient.

  • Buffering
  • Fragrance
Is it a concern?
Moderate concern: no hazard classifications on record. It is listed for cosmetic use in the EU.

Why it's flagged

EFSA OpenFoodTox genotoxicity classification: No data. Source: EFSA AFC 2003

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

No restrictions found. d-Tartaric acid appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Cleaning
  • Industrial
  • EUEFSAEFSA opinion2 entries
    • Re-evaluation of L(+)-tartaric acid (E 334), sodium tartrates (E 335), potassium tartrates (E 336), potassium sodium tartrate (E 337) and calcium tartrate (E 354) as food additives (EFSA FAF)Source →
    • Opinion of the Scientific Panel on food additives, flavourings, processing aids and materials in contact with food (AFC) related to L-Carnitine-L-tartrate for use in foods for particular nutritional purposes (EFSA AFC)Source →
  • EUCosIngActiveListed in CosIng inventory for cosmetic use.
    • Listed in CosIng inventory for cosmetic use.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 6 composition records across product categories including Home maintenance, Industrial products, Pet and animal care.
    • EPA CPDat observed this chemical in 6 composition records across product categories including Home maintenance, Industrial products, Pet and animal care.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

Independent scientific assessments cited by the records we hold, with the year and link where the record gives one.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

  • EFSA

    European Food Safety Authority

    • Re-evaluation of L(+)-tartaric acid (E 334), sodium tartrates (E 335), potassium tartrates (E 336), potassium sodium tartrate (E 337) and calcium tartrate (E 354) as food additives (EFSA FAF)

      2020 · EU EFSA listing · Read the source →

    • Opinion of the Scientific Panel on food additives, flavourings, processing aids and materials in contact with food (AFC) related to L-Carnitine-L-tartrate for use in foods for particular nutritional purposes (EFSA AFC)

      2003 · EU EFSA listing · Read the source →

Evidence & sources

No graded research studies for d-Tartaric acid yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

7 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EFSA OpenFoodTox

    regulatory · updated 2026-10-02

    Open →

  • EPA Chemical and Products Database

    exposure · updated 2019-02-27

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →

  • openFDA Substance

    registry · updated 2026-05-24

    Open →

  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Food use

Food-use source coverage is present in the current record.

Good fit

The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.

Fragrance avoidance

Not a strong fit for fragrance avoidance because it carries Fragrance.

Avoid

The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.

Where it has been recorded

How often EPA CPDat has listed d-Tartaric acid in a product composition. These are source records, not Greenveil catalog products.

Source records

6

Home maintenanceIndustrial productsPet and animal careLaboratory supplies

Typical roles

BufferingFragrance
See products using d-Tartaric acid →

Catalog

Found in these products

Their ingredient lists include d-Tartaric acid; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 127 →Find products without it →