Skip to content

GREENVEIL

  • beauty
  • food
  • industrial
  • pharma

Potassium biphthalate

CAS 877-24-7

Potassium biphthalate chemical structure

Concern score

Not assessed — no hazard data yet.

Potassium biphthalate in plain language

What it is

Also known as Monopotassium phthalate · Potassium;hydron;phthalate · 1,2-BENZENEDICARBOXYLIC acid, potassium salt (1:1) · Potassium phthalate monobasic · Potassium 2-carboxybenzoate · 1,2-Benzenedicarboxylic acid, monopotassium salt

Show all 13 names

Hydrogen potassium phthalate · Hydrogenophtalate de potassium · Kaliumhydrogenphthalat · Monopotassium 1,2-benzenedicarboxylate · Potassium hydrogen phthalate · hidrogenoftalato de potasio · potassium acid phthalate

What it does

Used in cosmetics as a pH buffer.

  • Buffering
  • pH adjuster
Is it a concern?
We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

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

Recorded in these product areas

  • Found in consumer products
  • Pharma
  • Food
  • Industrial
  • EUCosIngActiveListed in CosIng inventory for cosmetic use.
    • Listed in CosIng inventory for cosmetic use.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 180 composition records across product categories including Laboratory supplies, Food and drug, Raw materials. EPA CPDat classifies this chemical for functional uses including pH regulating agent.
    • EPA CPDat observed this chemical in 180 composition records across product categories including Laboratory supplies, Food and drug, Raw materials. EPA CPDat classifies this chemical for functional uses including pH regulating agent.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Potassium biphthalate. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

Evidence & sources

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

6 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EPA Chemical and Products Database

    exposure · updated January 7, 2008

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →

  • openFDA Substance

    registry · updated 2026-05-24

    Open →

  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →
Reference links (2)

Suitability

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

Food use

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed Potassium biphthalate in a product composition. These are source records, not Greenveil catalog products.

Source records

180

Named organisations

2

Laboratory suppliesFood and drugRaw materials

Typical roles

BufferingpH adjuster
See products using Potassium biphthalate →