What does the restriction note for MAGNESIUM PROPIONATE mean?

The restriction field for MAGNESIUM PROPIONATE reads: V/2. This is the restriction note from the CosIng inventory. For authoritative conditions and limits, always refer to the linked annex entries.

What other records share CAS 557-27-7?

CAS 557-27-7 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

How do I check if my formula contains MAGNESIUM PROPIONATE?

Use the INCI Checker to screen a full ingredient list across selected markets, or use the substance market comparison to review this identity across all supported market datasets.

InventoryRef 3511611/08/2020

MAGNESIUM PROPIONATE

Magnesium dipropionate

MAGNESIUM PROPIONATE is linked to 1 EU annex record on this page. Inventory note: V/2.

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Regulatory evidence by market

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Market	Evidence status	Records	Source language
European Union	Evidence linked Positive-list entry with conditions Open this evidence	1	English and EU languages
Great Britain	Source mapped Official source mapped; ingredient rule not imported	0	English
Canada	Source mapped Official source mapped; ingredient rule not imported	0	English and French
New Zealand	Evidence linked Permitted list with conditions Open this evidence	1	English
ASEAN	Source mapped Official source mapped; ingredient rule not imported	0	English and national languages
China	Source mapped Official source mapped; ingredient rule not imported	0	Chinese with selected English material
Japan	Source mapped Official source mapped; ingredient rule not imported	0	Japanese; official English translation available
South Korea	Source mapped Official source mapped; ingredient rule not imported	0	Korean with some English names
United States	Source mapped Official source mapped; ingredient rule not imported	0	English
Australia	Source mapped Official source mapped; ingredient rule not imported	0	English
Brazil	Source mapped Official source mapped; ingredient rule not imported	0	Portuguese with INCI crosswalks
India	Source mapped Official source mapped; ingredient rule not imported	0	English and Hindi
Saudi Arabia	Source mapped Official source mapped; ingredient rule not imported	0	Arabic and English

Chemical identity and properties

PubChem 2D chemical structure for CAS 557-27-7

CAS 557-27-7PubChem CID 6453238

Magnesium propionate

IUPAC name: magnesium propanoate

Molecular formula: C6H10MgO4
Molecular weight: 170.45 g/mol
Exact mass: 170.0429505 Da
Topological polar surface area: 80.3 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 4
Covalent units: 3
Defined stereocentres: 0

Also known as

Magnesium dipropionateUNII-699E2A173PEINECS 209-166-0699E2A173PPROPANOIC ACID, MAGNESIUM SALTPROPIONIC ACID, MAGNESIUM SALTRefChem:155255MAGNESIUM PROPIONATE [INCI]

3 more reported names

magnesium;propanoateMagnesium dipropanoateDB-209015

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID90204232

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for MAGNESIUM PROPIONATE

INCI name

MAGNESIUM PROPIONATE

Description

Magnesium dipropionate

Record provenance

Inventory reference: 35116
Imported identity: MAGNESIUM PROPIONATE
Source update: 11/08/2020

European Commission CosIng source notes

Annex records for MAGNESIUM PROPIONATE

Annex V Restriction reference

Entry 2

PROPIONIC ACID / AMMONIUM PROPIONATE / CALCIUM PROPIONATE / MAGNESIUM PROPIONATE / POTASSIUM PROPIO…

CAS: 79-09-4 / 17496-08-1 / 4075-81-4 / 557-27-7 / 327-62-8 / 137-40-6

EC: 201-176-3 / 241-503-7 / 223-795-8 / 209-166-0 / 206-323-5 / 205-290-4

Key data

CAS

557-27-7

209-166-0

Restriction

V/2

Function

PRESERVATIVE: Exclusively or mainly intended to inhibit the development of micro-organisms in the cosmetic product. All authorised preservatives are substances in the positive list of Annex V to the Cosmetics Regulation 1223/2009.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#15813 · MAGNESIUM PROPIONATE

Ingredients with overlapping formulation functions

LAURTRIMONIUM CHLORIDEANTISTATIC, PRESERVATIVE, SURFACTANT - EMULSIFYING

LIPPIA ORIGANOIDES LEAF/FLOWER/STEM OILANTIMICROBIAL, ANTIOXIDANT, FLAVOURING, FRAGRANCE, PRESERVATIVE

LYCORIS UYDOENSIS EXTRACTANTIMICROBIAL, ANTIOXIDANT, PRESERVATIVE

MAGNESIUM BENZOATEPRESERVATIVE

MAGNESIUM SALICYLATEPRESERVATIVE

MEA-BENZOATEPRESERVATIVE

MEA-SALICYLATEPRESERVATIVE

MEA-UNDECYLENATEPRESERVATIVE, SURFACTANT - CLEANSING

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal

How MAGNESIUM PROPIONATE appears in the CosIng inventory

The CosIng inventory lists MAGNESIUM PROPIONATE as a cosmetic ingredient and this page links it to 1 annex record. The inventory entry captures names and identifiers, while the annex record shows where the substance is prohibited, restricted or positively listed in EU cosmetics law.

MAGNESIUM PROPIONATE is also tagged with 1 cosmetic function in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

MAGNESIUM PROPIONATE appears in the EU CosIng inventory and has linked annex records. Check the annex records above for applicable restrictions, concentration limits and conditions of use. Annex II listing means prohibited; Annex III means restricted; Annexes IV, V and VI mean permitted under specified conditions.

The restriction field for MAGNESIUM PROPIONATE reads: "V/2". This is the restriction note recorded in the CosIng inventory for this ingredient. For authoritative conditions and limits, always refer to the linked annex entries above.

According to the EU CosIng inventory, MAGNESIUM PROPIONATE carries the following function designation(s):

PRESERVATIVE

CAS 557-27-7 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

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Source note for MAGNESIUM PROPIONATE

This page combines the CosIng inventory entry for MAGNESIUM PROPIONATE with 1 linked Annex II–VI record from the local dataset built from public European Commission cosmetic ingredient materials.

Use this inventory page to research MAGNESIUM PROPIONATE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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Tools & next steps

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