Trimagnesium Phosphate

Also known as: Phosphoric acid, magnesium salt (2:3), Trimagnesium bis(orthophosphate), Magnesium phosphate, tribasic, Magnesium phosphate, tribasic, anhydrous, EC 231-824-0 (+6 more)

INCI: TRIMAGNESIUM PHOSPHATE

Trimagnesium Phosphate (CAS 7757-87-1) is a cosmetic cosmetic ingredient functioning as Anticaking, bulking, opacifying. 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, pharmaceutical, and food safety data.

View industrial chemical safety profile for CAS 7757-87-1 →

Auto-generated CPSR Part A draft with source citations
Function
Anticaking, bulking, opacifying
Safety Rating
EXCELLENT

Chemistry & Identifiers

Formula
Mg3O8P2
MW
262.86 g/mol
EC Number
231-824-0
PubChem CID
24439
IUPAC Name
trimagnesium diphosphate
InChIKey
GVALZJMUIHGIMD-UHFFFAOYSA-H

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes GRAS for food use (21 CFR 184.1434); permitted in cosmetics without restriction

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

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

PubChem Annotations

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

Regulatory (1)
JECFA Evaluation
TRIMAGNESIUM 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)

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Anti-caking agent Filler Flavouring and nutrient Opacifer Pigment Thickening agent pH regulating agent
Regulatory List Membership (1)
FDA Substances Added to Food (EAFUS)

Expert Verdict

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

Regulatory Flags

fda_food_additive

Known Synonyms

Phosphoric acid, magnesium salt (2:3) Trimagnesium bis(orthophosphate) Magnesium phosphate, tribasic Magnesium phosphate, tribasic, anhydrous EC 231-824-0 EINECS 231-824-0 HSDB 1005 UNII-XMK14ETW2D Magnesium phosphate anhydrous Magnesium orthophosphate Magnesium phosphate (Mg3(PO4)2)

Chemical Function

Opacifer Filler Anti-caking agent Pigment Thickening agent pH regulating agent Flavouring and nutrient

Regulatory Lists

inert_ingredient; non_food_use; Pesticides food_additive; Substances Added to Food (formerly EAFUS) (2/2019) inert_ingredient; Pesticides Europe; plastic_additive Canada; Personal care; Substances in PCP - Canada (4/2014) inert_ingredient; Pesticides

Australian Status

AICIS status: listed

Cross-Vertical Safety Context

Same-CAS public records found in pharmaceutical and food safety data.

SOURCE ChEMBL / DrugCentral / FAERS DB_PHARMA CAS match

Pharmaceutical Data

Same-CAS rows from the pharmaceutical spoke database.

Compound
MAGNESIUM PHOSPHATE
ChEMBL ID
CHEMBL2106873
Max Phase
-1
View full pharmaceutical profile →
SOURCE EFSA / FDA GRAS food_additives

Food Safety Data

Same-CAS food additive or FDA GRAS records from the core public database.

Food Name
Magnesium phosphates (general)
E Number
E343
ADI
40 mg/kg bw
Food Category
flavor_enhancer
View full food safety profile →

Frequently Asked Questions

Is Trimagnesium Phosphate safe in cosmetics?

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

Is Trimagnesium Phosphate allowed in the EU?

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

What does Trimagnesium Phosphate do in cosmetics?

Trimagnesium Phosphate functions as: Anticaking, bulking, opacifying. It is classified as a cosmetic ingredient in our database. CAS number: 7757-87-1.

Is Trimagnesium Phosphate used outside cosmetics?

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

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

Trimagnesium Phosphate is classified GHS Danger (H302, H311, H314, H331, H315, H319, H335) in the chemicals database but is allowed in EU cosmetics.

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