Substance Information

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Key Regulatory data, the new Classification & Labelling (C&L) Inventory, and REACH Registration data can now be found in ECHA CHEM. For the time being regulatory data here are still updated daily. The old C&L Inventory was last updated on 30 September 2025. REACH Registration and C&L Inventory data will be removed from here by 18 December 2025. Due to a technical upgrade and the coming holidays, data on ECHA CHEM will remain frozen between 5 December 2025 and 10 January 2026.

More information on the transition to ECHA CHEM

Substance Information

Substance Infocard

IC

Potassium sodium tartrate

EC / List no.: 613-385-0

CAS no.: 6381-59-5

Mol. Formula:

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Key datasets

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Regulatory context

Here you can find all of the regulations and regulatory lists in which this substance appears, according to the data available to ECHA. This substance has been found in the following regulatory activities (directly, or inheriting the regulatory context of a parent substance):

  • Substances predicted as likely to meet criteria for category 1A or 1B carcinogenicity, mutagenicity, or reproductive toxicity, or with dispersive or diffuse use(s) where predicted likely to meet any classification criterion for health or environmental hazards, or where there is a nanoform soluble in biological and environmental media.
  • Substances assessed for potential regulatory needs.
  • PACT - Public activities Co-ordination Tool
    Public (risk management) activities co-ordination table
    Tool showing an overview of substances in various key regulatory processes that authorities are working on.
  • Substances indicated, in 2009, as being intended to be registered by at least one company in the EEA.
  • Substances for which classification and labeling data have been submitted to ECHA in a registration under REACH or notified by manufacturers or importers under CLP. Such notifications are required for hazardous substances, as such or in mixtures, as well as for all substances subject to registration, regardless of their hazard.
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Substance names and other identifiers

Regulatory process names
Butanedioic acid, 2,3-dihydroxy- (2R,3R)-, potassium sodium salt, hydrate (1:1:1:4)
Pre-Registration process
Potassium sodium tartrate
Other
IUPAC names
Butanedioic acid, 2,3-dihydroxy- (2R,3R)-, monopotassium monosodium salt, tetrahydrate
C&L Inventory
Potassium sodium 2,3-dihydroxysuccinate hydrate (1:1:1:4)
C&L Inventory
Potassium sodium L-tartrate tetrahydrate
C&L Inventory
Potassium sodium tartrate
C&L Inventory
Tartrate de potassium et de sodium tetrahydrate
C&L Inventory
Other names
Potassium sodium tartrate tetra hydrate
Pre-Registration process
Potassium sodium tartrate tetrahydrate
Pre-Registration process
Other identifiers
6381-59-5
C&L Inventory, Pre-Registration process, Other
CAS number