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Calcium dihydrogen phosphate

CAS 2999594-81-7

Also registered as 2 other CAS numbers

7758-23-8 · 10103-46-5

Calcium dihydrogen phosphate chemical structure

Concern score

Not assessed — no hazard data yet.

Calcium dihydrogen phosphate in plain language

What it is: On cosmetic ingredient lists it appears as “Calcium phosphate”.
Also known as Calcium phosphate · Calcium bis(dihydrogen phosphate) · Calcium phosphate monobasic · Monobasic calcium phosphate · Calcium phosphate, monobasic, anhydrous · Calcium biphosphate
Show all 34 names
Monocalcium phosphate · Acid calcium phosphate · Calcium dihydrogen tetraoxophosphate · Calcium monobasic phosphate · Anhydrous monobasic calcium phosphate · Monobasic monocalcium phosphate · Phosphoric acid, calcium salt (2:1) · C 38 (phosphate) · Calcium dihydrogen orthophosphate · Calcium phosphate (1:2) · Calcium phosphate monobasic anhydrous · CaH4O8P2 · Calcium bis(dihydrogenorthophosphate) · Calcium bisphosphate · Calcium diorthophosphate · Calcium hydrogen phosphate (Ca(H2Po4)2) · Calcium hydrogen phosphate (CaH4(PO4)2) · Calcium tetrahydrogen orthophosphate · Calcium tetrahydrogen phosphate · E-341(I) · Ins NO.341(I) · INS-341(I) · Monocalcium orthophosphate · anhydrous Monocalcium phosphate · Primary calcium phosphate · bis(dihydrogenoorthophosphate) de calcium · calcarea phosphorica · calcium superphosphate
What it does: Used in cosmetics as an abrasive, an antiplaque and an oral-care ingredient.
Abrasive
Antiplaque
Oral care
Buffering
Bulking
Viscosity controlling
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. Calcium dihydrogen phosphate appears in these published regulatory listings.

Inactive ingredient in US drugs

Recorded in these product areas

Found in consumer products
Industrial

GLOBALJECFAEvaluated2 entries
- JECFA evaluation record.Source →
- JECFA evaluation record. Functional class: texturizer, thickener, yeast food, acidity regulator, firming agent, flour treatment agent, leavening agent, nutrient supplement, raising agent, sequestrant.Source →
EUCosIngActiveListed in CosIng inventory for cosmetic use.
- Listed in CosIng inventory for cosmetic use.Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 3 composition records across product categories including Landscape/yard. EPA CPDat classifies this chemical for functional uses including pH regulating agent, Pigment, Soil amendments.
- EPA CPDat observed this chemical in 3 composition records across product categories including Landscape/yard. EPA CPDat classifies this chemical for functional uses including pH regulating agent, Pigment, Soil amendments.Source →
USFDAinactive ingredient databaseRoute: ORAL; Dosage form: TABLET; Potency: 17 mg
- Route: ORAL; Dosage form: TABLET; Potency: 17 mgSource →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

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

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.
JECFA
Joint FAO/WHO Expert Committee on Food Additives
- JECFA evaluation record.
  Year not recorded · GLOBAL JECFA listing · Read the source →
- JECFA evaluation record. Functional class: texturizer, thickener, yeast food, acidity regulator, firming agent, flour treatment agent, leavening agent, nutrient supplement, raising agent, sequestrant.
  Year not recorded · GLOBAL JECFA listing · Read the source →

Evidence & sources

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

8 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 Inactive Ingredient Database
regulatory · updated 2026-01-09
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 →

Reference links (1)

Openfda substance

codexalimentarius.net

Read →

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 Calcium dihydrogen phosphate in a product composition. These are source records, not Greenveil catalog products.

Source records

Named organisations

Landscape/yard

Typical roles

AbrasiveAntiplaqueOral careBufferingBulkingViscosity controlling

See products using Calcium dihydrogen phosphate →

Catalog

Found in these products

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

See all 13 →Find products without it →