ChemAbout
© 2026 ChemAbout
Insights|Privacy Policy|Terms of Service|[email protected]
Home/Compounds/Food Additive/Potassium L-hydrogentartrate
C4H5KO6
188.18 g/mol
Food Additive

Potassium bitartrate

CAS868-14-4EC212-769-1
Category
Food Additive
Compound Class
Inorganic Salt
Primary Use
food acidity regulator and raising agent

Potassium bitartrate is an organic potassium salt of L-tartaric acid, naturally occurring as a by-product of winemaking and found in grapes. It serves as a food acidity regulator and raising agent, and also has roles as an antimicrobial agent and laxative.

food acidity regulatorraising agentantimicrobial agent

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

Sourcing or supplying this compound?

List your inventory or post a purchase request

CAS 868-14-4

List This Product
Sign in to publish supply information
Request This Product
Submit a request without registering

Related Compounds

ReferenceSame Category

Choline bitartrate

CAS87-67-2

dietary supplement and nutrient

ReferenceSame Category

Β-D-arabinopyranose

CAS87-72-9

flavoring agent and nutrient

ReferenceSame Category

Mannitol

CAS87-78-5

anti-caking and free flowing agent

ReferenceSame Category

Keto-L-sorbose

CAS87-79-6

sweetener and vitamin C precursor

Referencestereoisomer of

Disodium L-tartrate

CAS868-18-8

Food emulsifier and sequestrant

Referencestereoisomer of

L-tartaric acid

CAS87-69-4

Food additive and acidulant

Referencestereoisomer of

DL-TARTARIC-2,3-D2 ACID

CAS91469-46-4

research compound

Referencestereoisomer of

Racemic acid

CAS133-37-9

Acidity regulator and synergist for antioxidants

Identifiers
IUPAC Name

potassium (2R,3R)-2,3,4-trihydroxy-4-oxobutanoate

InChIKey

KYKNRZGSIGMXFH-ZVGUSBNCSA-M

SMILES

[C@@H]([C@H](C(=O)[O-])O)(C(=O)O)O.[K+]

Synonyms (42)
  • E336
  • POTASSIUM BITARTRATE (USP IMPURITY)
  • POTASSIUM BITARTRATE (USP MONOGRAPH)
  • POTASSIUM BITARTRATE (USP-RS)
  • POTASSIUM HYDROGEN TARTRATE (EP IMPURITY)
  • POTASSIUM HYDROGEN TARTRATE (EP MONOGRAPH)
  • Potassium bitartrate (USP)
  • Acid potassium tartrate
  • Cream of tartar
  • Cremor tartari
  • E-336(I)
  • Faccla
  • Faccula
  • Faecla
  • Faecula
  • Monobasic potassium tartrate
  • Monopotassium tartrate
  • POTASSIUM ACID TARTRATE
  • POTASSIUM BITARTRATE (II)
  • POTASSIUM HYDROGEN TARTRATE
  • Potassium L-tartrate
  • Potassium Lbitartrate
  • Potassium Ltartrate (KC4H5O6)
  • Potassium bitartrate
  • Potassium hydrogen L-tartrate
  • Potassium tartrate (KHC4H4O6)
  • Purified cream of tartar
  • Tartar
  • Tartar cream