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Potassium Sodium Tartrate (International)

CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

Food additive (e number)

Laxative, osmotically acting

Chemical Names

Butanedioic acid, 2,3-dihydroxy-, [R-(R*,R*)]-, monopotaβium monosodium salt

Potaβium sodium (+)-(2R,3R)-2,3-dihydroxybutanedioate

Tartaric acid, monopotaβium monosodium salt

Foreign Names

  • Kalii natrii tartras (Latin)
  • Kaliumnatriumtartrat (German)
  • Potassium et de sodium, tartrate de (French)
  • Tartrato de potasio y de sodio (Spanish)

Generic Names

  • CCRIS 3949 (IS)
  • Potassium Sodium Tartrate (PH: USP 41)
  • E337 (IS)
  • Rochelle salt (IS)
  • Seignette salt (IS)
  • Kalii natrii tartras tetrahydricus (PH: Ph. Eur. 9)
  • Potassium sodium tartrate tetrahydrate (PH: Ph. Eur. 9)
  • Potassium Sodium Tartrate Tetrahydrate (PH: BP 2018)

Brand Name

  • Trigolax
    Coup, Greece


ISInofficial Synonym
PHPharmacopoeia Name

Further information on drug naming conventions: International Nonproprietary Names.

Important Notice: The international database is in BETA release. This means it is still under development and may contain inaccuracies. It is not intended as a substitute for the expertise and judgement of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that the use of any medication in any country is safe, appropriate or effective for you. Consult with your healthcare professional before taking any medication.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.