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CAS 16325-47-6 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.

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InventoryRef 9737603/10/2019

AMMONIUM METHACRYLATE

2-Propenoic acid, 2-methyl-, ammonium salt (1:1)

AMMONIUM METHACRYLATE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 16325-47-6

CAS 16325-47-6PubChem CID 73667

Ammonium methacrylate

IUPAC name: azanium 2-methylprop-2-enoate

Molecular formula: C4H9NO2
Molecular weight: 103.12 g/mol
Exact mass: 103.063328530 Da
Topological polar surface area: 41.1 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 2
Covalent units: 2
Defined stereocentres: 0

Also known as

UNII-J2243103QO2-Propenoic acid, 2-methyl-, ammonium saltEINECS 240-402-52-Propenoic acid, 2-methyl-, ammonium salt (1:1)METHACRYLIC ACID, AMMONIUM SALTRefChem:112179AMMONIUM METHACRYLATE [INCI]240-402-5

3 more reported names

methacrylate, ammoniumazanium;2-methylprop-2-enoateAmmonium 2-methylprop-2-enoate

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID0023874

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for AMMONIUM METHACRYLATE

INCI name

AMMONIUM METHACRYLATE

Description

2-Propenoic acid, 2-methyl-, ammonium salt (1:1)

Record provenance

Inventory reference: 97376
Imported identity: AMMONIUM METHACRYLATE
Source update: 03/10/2019

European Commission CosIng source notes

Annex records for AMMONIUM METHACRYLATE

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Key data

CAS

16325-47-6

240-402-5

Restriction

—

Function

NOT REPORTED: No function currently reported.

Ingredients with overlapping formulation functions

AMINOPENTYL GUANINENOT REPORTED

AMINOPROPYLTRIISOPROPOXYSILANENOT REPORTED

AMMONIUM ACRYLATENOT REPORTED

AMMONIUM AMPSNOT REPORTED

ANILINENOT REPORTED

ANTHRAQUINONENOT REPORTED

ANTIMONY POTASSIUM TARTRATENOT REPORTED

ARGININE MANDELATENOT REPORTED

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 AMMONIUM METHACRYLATE appears in the CosIng inventory

The CosIng inventory lists AMMONIUM METHACRYLATE as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

AMMONIUM METHACRYLATE 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

AMMONIUM METHACRYLATE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, AMMONIUM METHACRYLATE carries the following function designation(s):

NOT REPORTED

CAS 16325-47-6 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 AMMONIUM METHACRYLATE

This page reproduces the CosIng inventory entry for AMMONIUM METHACRYLATE from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research AMMONIUM METHACRYLATE 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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