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CAS 1985-51-9 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 8411215/10/2010

NEOPENTYL GLYCOL DIMETHACRYLATE

2-Propenoic Acid, 2-Methyl, 2,2-Dimethyl-1,3-Propanediyl Ester; 2,2-dimethyl-1,3-propanediyl bismethacrylate

NEOPENTYL GLYCOL DIMETHACRYLATE 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.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 1985-51-9

CAS 1985-51-9PubChem CID 16135

Neopentyl glycol dimethacrylate

IUPAC name: [2,2-dimethyl-3-(2-methylprop-2-enoyloxy)propyl] 2-methylprop-2-enoate

Molecular formula: C13H20O4
Molecular weight: 240.29 g/mol
Exact mass: 240.13615911 Da
XLogP3: 3.1
Topological polar surface area: 52.6 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 4
Covalent units: 1
Defined stereocentres: 0

Also known as

Neopentanediol dimethacrylate2,2-Dimethylpropane dimethacrylateEINECS 217-856-8CCRIS 7048LIGHT ESTER NP4NGO96034H2,2-Dimethyl-1,3-propanediyl bismethacrylate2,2-Dimethylpropane-1,3-diyl bis(2-methylprop-2-enoate)

16 more reported names

2-Propenoic acid, 2-methyl-, 2,2-dimethyl-1,3-propanediyl ester2,2-Dimethyl-1,3-propanediol Dimethacrylate2-Propenoic acid, 2-methyl-, 1,1'-(2,2-dimethyl-1,3-propanediyl) ester1,3-PROPANEDIOL, 2,2-DIMETHYL-, DIMETHACRYLATEMETHACRYLIC ACID, 2,2-DIMETHYLTRIMETHYLENE ESTER.ALPHA.,.OMEGA.-BIS(METHACRYLOYLOXY)-2,2-DIMETHYLPROPYLENERefChem:832331NEOPENTYL GLYCOL DIMETHACRYLATE [INCI]ALPHA,OMEGA-BIS(METHACRYLOYLOXY)-2,2-DIMETHYLPROPYLENE2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)2,2-dimethylpropanediol dimethacrylateNeopentyl glycol dimethacrylate, 90%1,3-Bis(methacryloyloxy)-2,2-dimethylpropaneUNII-4NGO96034H2,2-Dimethyl-1,3-propanediyl bismethacrylate;2-Propenoic acid, 2-methyl-, 2,2-dimethyl-1,3-propanediyl ester;Neopentanediol dimethacrylate2,2-dimethylpropane-1,1-diol

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID5044867

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 NEOPENTYL GLYCOL DIMETHACRYLATE

INCI name

NEOPENTYL GLYCOL DIMETHACRYLATE

Description

2-Propenoic Acid, 2-Methyl, 2,2-Dimethyl-1,3-Propanediyl Ester; 2,2-dimethyl-1,3-propanediyl bismethacrylate

Record provenance

Inventory reference: 84112
Imported identity: NEOPENTYL GLYCOL DIMETHACRYLATE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for NEOPENTYL GLYCOL DIMETHACRYLATE

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Key data

CAS

1985-51-9

217-856-8

Restriction

—

Function

NAIL CONDITIONING: Improving and/or enhancing the cosmetic characteristics of the nail (moisturizing, increasing sheen, reducing brittleness and flaking, etc.).

Official EU ingredient-name evidence

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

#17343 · NEOPENTYL GLYCOL DIMETHACRYLATE

Ingredients with overlapping formulation functions

METHOXY PEG-45 POLYLACTIC ACIDNAIL CONDITIONING; SKIN CONDITIONING - MISCELLANEOUS

METHYL BENZOYLFORMATENAIL CONDITIONING

METHYLENE GLYCOLNAIL CONDITIONING, NAIL SCULPTING

NARCISSUS PSEUDONARCISSUS ROOT EXTRACTASTRINGENT, HAIR CONDITIONING, NAIL CONDITIONING, SKIN CONDITIONING

NICOTINOYL SH-NONAPEPTIDE-3BLEACHING, HUMECTANT, NAIL CONDITIONING, SKIN PROTECTING

OPUNTIA TUNA LEAF EXTRACTHAIR CONDITIONING, NAIL CONDITIONING, SKIN CONDITIONING

OPUNTIA VULGARIS FRUIT EXTRACTHAIR CONDITIONING, NAIL CONDITIONING, SKIN CONDITIONING

PALMITOYL OLIGOPEPTIDE-70NAIL CONDITIONING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

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 NEOPENTYL GLYCOL DIMETHACRYLATE appears in the CosIng inventory

The CosIng inventory lists NEOPENTYL GLYCOL DIMETHACRYLATE 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.

NEOPENTYL GLYCOL DIMETHACRYLATE 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

NEOPENTYL GLYCOL DIMETHACRYLATE 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, NEOPENTYL GLYCOL DIMETHACRYLATE carries the following function designation(s):

NAIL CONDITIONING

CAS 1985-51-9 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 NEOPENTYL GLYCOL DIMETHACRYLATE

This page reproduces the CosIng inventory entry for NEOPENTYL GLYCOL DIMETHACRYLATE 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 NEOPENTYL GLYCOL DIMETHACRYLATE 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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