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CAS 304-59-6

CAS 304-59-6 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 304-59-6
CAS 304-59-6PubChem CID 9357

Potassium Sodium Tartrate

Potassium sodium L-tartrate is the organic sodium and potassium salt of L-tartaric acid (mol ratio 1:1:1). It has a role as a laxative. It is a potassium salt and an organic sodium salt. It contains a L-tartrate(2-). — ChEBI

IUPAC name
potassium;sodium;(2R,3R)-2,3-dihydroxybutanedioate
Molecular formula
C4H4KNaO6
Molecular weight
210.16 g/mol
Exact mass
209.95426361 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

Rochelle saltSeignette saltSODIUM POTASSIUM TARTRATEMonopotassium monosodium tartrateSodium potassium L-tartratePotassium sodium L(+)-tartratePotassium sodium tartrate anhydrousP49F8NV7ES
16 more reported names
Tartaric acid, monopotassium monosodium salt2,3-Dihydroxybutanedioic acid, monopotassium monosodium saltButanedioic acid, 2,3-dihydroxy-, monopotassium monosodium saltCHEBI:63019INS NO.337Potassium sodium dextro-tartrateINS-337E-337Co eff pdrRefChem:570851Butanedioic acid, 2,3-dihydroxy-(2R,3R)-, monopotassium monosodium salt206-156-8613-385-0QH257BPV3J147-79-5CCRIS 3949
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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.

Records for CAS 304-59-6

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How CAS 304-59-6 is used on this site

CAS 304-59-6 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 304-59-6 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.