Tricalcium Phosphate

Also known as: Calcium orthophosphate, tri-(tert), Caswell No. 148, EINECS 231-840-8, EPA Pesticide Chemical Code 076401, FEMA No. 3081 (+9 more)

INCI: TRICALCIUM PHOSPHATE

Tricalcium Phosphate (CAS 7758-87-4) is a cosmetic cosmetic ingredient functioning as Opacifier, abrasive, anti-caking agent, oral care/remineralization agent,. NOAEL 6.67 mg/kg bw/day (cross-referenced against ToxValDB ECHA IUCLID); EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety and pharmaceutical data.

View industrial chemical safety profile for CAS 7758-87-4 →

Auto-generated CPSR Part A draft with source citations
Function
Opacifier, abrasive, anti-caking agent, oral care/remineralization agent, bulking agent
Safety Rating
EXCELLENT

Chemistry & Identifiers

Formula
Ca3O8P2
MW
310.18 g/mol
EC Number
231-840-8
PubChem CID
24456
IUPAC Name
tricalcium diphosphate
InChIKey
QORWJWZARLRLPR-UHFFFAOYSA-H

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes Permitted; GRAS food additive (21 CFR 182); USP grade available

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Tricalcium Phosphate.

Calculate MoS for your specific formulation with the MoS Calculator.

Pre-Calculated Safety Assessment

Pre-calculated NOAEL → SED → MoS audit trail for Tricalcium Phosphate across SCCS product categories, with measured dermal absorption where available.

ECHA REACH Registration

European Chemicals Agency REACH dossier and Substances of Very High Concern listing.

Registration Type
Full
Tonnage Band
100 - 1,000 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No

Additional Ingredient Properties

1 property record from structured ingredient metadata.

oral_care
{"cas_number": "7758-87-4", "ingredient_class": "remineralizing", "function_primary": "Remineralizing agent", "function_secondary": "Abrasive (mild)", "anti_caries_mechanism": "Provides calcium and phosphate ions for remineralization", "fluoride_content_ppm_if_applicable": "0", "remineralization_capacity": "Moderate", "enamel_hardness_improvement": "10-15%", "dentin_tubule_occlusion": "Low to mode…

PubChem Annotations

Safety and regulatory annotations from PubChem (NCBI) aggregated sources.

Regulatory (2)
JECFA Evaluation
TRICALCIUM PHOSPHATE | 1982 | Group MTDI for phosphorus from all sources, expressed as P | TRS 683-JECFA 26/25 | FAS 17-JECFA 26/151
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
EU Food Improvement
Food additives
Source: EU Food Improvement Agents

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Abrasive Anti-caking agent Deodorizer Drier Emulsifier Filler Flavouring and nutrient Fragrance Humectant Leavening agent
Regulatory List Membership (1)
FDA Substances Added to Food (EAFUS)

Expert Verdict

Expert safety assessment and concern-level summary for Tricalcium Phosphate.

Regulatory Flags

fda_food_additive

Known Synonyms

Calcium orthophosphate, tri-(tert) Caswell No. 148 EINECS 231-840-8 EPA Pesticide Chemical Code 076401 FEMA No. 3081 Natural whitlockite UNII-K4C08XP666 JAX TCP Ca3(PO4)2 Calcigenol Simple Calcium phosphate tribasic calcium phosphate tricalcium diphosphate tricalcium bis(phosphate)

Chemical Function

Abrasive Deodorizer Opacifer Anti-caking agent Fragrance

Regulatory Lists

food_additive; Substances Added to Food (formerly EAFUS) (2/2019) active_ingredient; Europe; Pesticides inert_ingredient; Pesticides animal_products animal_products inert_ingredient; non_food_use; Pesticides

Australian Status

AICIS status: listed

Cross-Vertical Safety Context

Same-CAS public records found in pharmaceutical data.

SOURCE ChEMBL / DrugCentral / FAERS DB_PHARMA CAS match

Pharmaceutical Data

Same-CAS rows from the pharmaceutical spoke database.

Compound
CALCIUM PHOSPHATE, TRIBASIC
ChEMBL ID
CHEMBL2106566
Max Phase
3
Adverse Event Associations
15
View full pharmaceutical profile →

Frequently Asked Questions

Is Tricalcium Phosphate safe in cosmetics?

Tricalcium Phosphate has a safety rating of "EXCELLENT" in our database. EU status: permitted. US status: permitted.

Is Tricalcium Phosphate allowed in the EU?

Tricalcium Phosphate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Tricalcium Phosphate do in cosmetics?

Tricalcium Phosphate functions as: Opacifier, abrasive, anti-caking agent, oral care/remineralization agent, bulking agent. It is classified as a cosmetic ingredient in our database. CAS number: 7758-87-4.

Is Tricalcium Phosphate used outside cosmetics?

Tricalcium Phosphate also appears in industrial chemical safety and pharmaceutical data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

Does Tricalcium Phosphate have different safety status in cosmetics vs industrial chemicals?

Tricalcium Phosphate is classified GHS Danger (H318) in the chemicals database but is allowed in EU cosmetics.

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