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Official EU label nameGlossary entry 22771

POTASSIUM TARTRATE

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 0 of 13 indexed market datasets: 0 country records and 0 EU Annex records. Every result and evidence gap is listed below.

0 markets with evidence
Markets checked
13
Markets with evidence
0
Evidence gaps
13
Resolved identifiers
2

Resolved substance identity

CAS:921-53-9
EC:213-067-8
Ingredient index records:
POTASSIUM TARTRATE
Cosmetic functions: BUFFERING

Potassium salt of tartaric acid

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1 matched or reported name
POTASSIUM TARTRATE

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name POTASSIUM TARTRATE.

That is a statement about this inventory, not about the law: no imported rule is not evidence that a substance is permitted. A rule may exist under a different name, under a CAS or EC number this glossary entry does not carry, or in a dataset not yet imported.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 921-53-9
CAS 921-53-9PubChem CID 8984

Potassium Tartrate

Potassium L-tartrate is the potassium salt of L-tartaric acid. It contains a L-tartrate(2-). — ChEBI

IUPAC name
dipotassium;(2R,3R)-2,3-dihydroxybutanedioate
Molecular formula
C4H4K2O6
Molecular weight
226.27 g/mol
Exact mass
225.92820081 Da
Topological polar surface area
121.0 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
6
Covalent units
3
Defined stereocentres
2

Also known as

O9WLL1ZL8SINS NO.336(II)INS-336(II)E-336(II)KALI TARTARICUMRefChem:57012Butanedioic acid, 2,3-dihydroxy-(2R,3R)-, dipotassium saltButanedioic acid, 2,3-dihydroxy-(2R,3R)-, potassium salt (1:2)
16 more reported names
213-067-8Dipotassium tartratePotassium L-tartrateButanedioic acid, 2,3-dihydroxy- (2R,3R)-, dipotassium saltdipotassium (2R,3R)-2,3-dihydroxybutanedioateL-Tartaric acid dipotassium salt147-78-4DIPOTASSIUM L-(+)-TARTRATE(2R,3R)-2,3-dihydroxysuccinic acid, potassium saltCream of tartarPotassium L-tartrate hydrateButanedioic acid, 2,3-dihydroxy- (2R,3R)-, potassium salt (1:2)argolSoluble tartarL-PotassiumtartrateEINECS 205-697-7
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External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Additional authoritative substance research

Each link searches that source for this identity. A link is a research route, not a claim that the source holds an exact record. What each source is, and its legal weight

Cosmetic Ingredient Review safety assessmentsFDA Global Substance Registration SystemILO/WHO International Chemical Safety CardsJapan NITE-CHRIPNIOSH Pocket Guide to Chemical HazardsOECD eChemPortalUS EPA CompTox CTX APIs

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Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

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