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CAS 921-53-9

CAS 921-53-9 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 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.

Records for CAS 921-53-9

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How CAS 921-53-9 is used on this site

CAS 921-53-9 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 921-53-9 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.