food
industrial
pharma

Potassium citrate

E332 · CAS 6100-05-6 · 0/100 · High conf.

Also registered as 1 other CAS number

209968-03-6

Concern score

0/100Low concern — well-established and permitted without restriction (FDA GRAS; JECFA ADI not specified; CIR safe as used; EU food additive; EU CosIng).

High confidence

Potassium citrate in plain language

What it is: Also known as Potassium citrate monohydrate · Tripotassium citrate monohydrate · tripotassium;2-hydroxypropane-1,2,3-tricarboxylate;hydrate · Cymaclear · E-332(II) · Effercitrate
Show all 20 names
Ins NO.332(II) · INS-332(II) · K-cit-v · Kali Citricum · Potassium citrate extended release · Pot cit · Pot cit eff · Potassium-cit · Urocit-k · Urocit-k 5meq · potassium citrate.H2O · ADV-7103 component potassium citrate monohydrate · ADV7103 component potassium citrate monohydrate · Kalii citras
What it does: Used in consumer products as a chelating agent.
Chelating agent
Is it a concern?: Low concern: no hazard classifications on record.

As a food additive

E-number

E332

Used in food as

Acidity regulator
Emulsifying salt
Sequestrant

EU safety status

Authorised in the EU without a numerical limit (Group I); EFSA re-evaluation not yet published.

It never counts as an additive of concern in a product’s food rating.

Regulation (EC) No 1333/2008, Annex II Part C(1) Group I (quantum satis)

Why it's flagged

EPA CPDat observed this chemical in 1 composition records across product categories including Laboratory supplies.

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

No restrictions found. Potassium citrate appears in these published regulatory listings.

In marketed US drugs
Inactive ingredient in US drugs

Recorded in these product areas

Found in consumer products
Industrial

USFDAinactive ingredient database5 entries — 2 administration routes
- Route: ORAL; Dosage form: POWDER, FOR SOLUTION; Maximum daily exposure: 570 mgSource →
- Route: ORAL; Dosage form: SUSPENSION; Potency: NASource →
- Route: TOPICAL; Dosage form: AEROSOL; Potency: 0.26 %w/wSource →
- Route: TOPICAL; Dosage form: AEROSOL, FOAM; Maximum daily exposure: 12 mgSource →
- Route: ORAL; Dosage form: SOLUTION; Maximum daily exposure: 913 mgSource →
GLOBALJECFAEvaluatedJECFA evaluation record.
- JECFA evaluation record.Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 1 composition records across product categories including Laboratory supplies. EPA CPDat classifies this chemical for functional uses including Chelating agent, Processing aids not otherwise specified.
- EPA CPDat observed this chemical in 1 composition records across product categories including Laboratory supplies. EPA CPDat classifies this chemical for functional uses including Chelating agent, Processing aids not otherwise specified.Source →
USFDAmarketed drug occurrenceFDA NDC lists this ingredient in 60 active drug products and 65 total products.
- FDA NDC lists this ingredient in 60 active drug products and 65 total products.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →
USUSDA FoodData Centralobserved in branded food ingredient statementsObserved in 3 USDA branded foods including 1 LITER BOTTLE DIET BLACK CHERRY, 1 LITER BOTTLE TOM COLLINS, 1 LITER BOTTLE VICHY WATER.
- Observed in 3 USDA branded foods including 1 LITER BOTTLE DIET BLACK CHERRY, 1 LITER BOTTLE TOM COLLINS, 1 LITER BOTTLE VICHY WATER.Source →

Expert safety opinions

Independent scientific assessments cited by the records we hold, with the year and link where the record gives one.

JECFA
Joint FAO/WHO Expert Committee on Food Additives
- JECFA evaluation record.
  Year not recorded · GLOBAL JECFA listing · Read the source →
EFSA
European Food Safety Authority
No EFSA opinion on file.

Evidence & sources

No graded research studies for Potassium citrate yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

9 data sources

Where this comes from

EPA Chemical and Products Database
exposure · updated January 7, 2008
Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
Open →
FDA Inactive Ingredient Database
regulatory · updated 2026-01-09
Open →
FDA National Drug Code Directory
regulatory · updated 2027-12-31
Open →
FDA GSRS UNII
registry · updated 2026-02-26
Open →
WHO JECFA Database
regulatory · updated 2026-10-04
Open →
openFDA Substance
registry · updated 2026-05-24
Open →
PubChem Live Enrichment
chemistry · updated 2026-05-17
Open →
USDA Branded Foods
product_occurrence · updated 2026-02-19
Open →

Reference links (2)

Openfda substance

codexalimentarius.net

Read →

Openfda substance

ema.europa.eu

Read →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Food use

Food-use source coverage is present in the current record.

Good fit

The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.

Fragrance avoidance

No fragrance-linked caution surfaced in the current profile.

Good fit

This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.

Where it has been recorded

How often FDA National Drug Code directory has listed Potassium citrate in a product composition. These are source records, not Greenveil catalog products.

Source records

Typical roles

Chelating agent

See products using Potassium citrate →

Catalog

Found in these products

Their ingredient lists include Potassium citrate; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 103 →Find products without it →