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CAS 1115-20-4 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 9593506/04/2018

3-HYDROXY-2,2-DIMETHYLPROPYL HYDROXYPIVALATE

Propanoic acid, 3-hydroxy-2,2-dimethyl-, 3-hydroxy-2,2-dimethylpropyl ester

3-HYDROXY-2,2-DIMETHYLPROPYL HYDROXYPIVALATE 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 1115-20-4

CAS 1115-20-4PubChem CID 14218

3-Hydroxy-2,2-dimethylpropyl hydroxypivalate

IUPAC name: (3-hydroxy-2,2-dimethylpropyl) 3-hydroxy-2,2-dimethylpropanoate

Molecular formula: C10H20O4
Molecular weight: 204.26 g/mol
Exact mass: 204.13615911 Da
XLogP3: 0.8
Topological polar surface area: 66.8 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 4
Covalent units: 1
Defined stereocentres: 0

Also known as

3-Hydroxy-2,2-dimethylpropyl 3-hydroxy-2,2-dimethylpropanoateHydroxypivalic acid neopentyl glycol esterEsterdiol 204Hydroxyneopentyl hydroxypivalate3-Hydroxy-2,2-dimethylpropyl 3-hydroxy-2,2-dimethylpropionateNeopentyl glycol monohydroxypivalate3-(Hydroxypivaloyloxy)-2,2-dimethylpropanolEster diol 204

16 more reported names

HSDB 5783Propanoic acid, 3-hydroxy-2,2-dimethyl-, 3-hydroxy-2,2-dimethylpropyl esterCG0A37GAHJNeopental glycol monohydroxypivalateEINECS 214-222-23-Hydroxy-2,2-dimethylpropyl 2,2-dimethylhydracrylateHydracrylic acid, 2,2-dimethyl-, 3-hydroxy-2,2-dimethylpropyl ester2,2-Dimethyl-1,3-propanediol Mono(hydroxypivalate)EC 214-222-2NEOPENTYL GLYCOL HYDROXYPIVALATE MONOESTER3-HYDROXY-2,2-DIMETHYLPROPYL HYDROXYPIVALATE [HSDB]2,2-dimethyl-3-hydroxypropyl 2,2-dimethyl-3-hydroxypropionate1,3-PROPANEDIOL, 2,2-DIMETHYL-, MONO(2,2-DIMETHYLHYDRACRYLATE)2,2-DIMETHYL-3-HYDROXYPROPYL .ALPHA.,.ALPHA.-DIMETHYL-.BETA.-HYDROXYPROPIONATERefChem:5023043(Hydroxypivaloyloxy)2,2dimethylpropanol

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEMBL:CHEMBL3187512
EPA DTXSID:DTXSID4027361

Evidence from additional scientific databases

NIH PubChem PUG-View

Exact identifier match14218

Attributed physical-property, hazard, environmental and use annotations.

Physical Description: Liquid Source: EPA Chemical Data Reporting (CDR)
Physical Description: Solid; [IUCLID] White odorless solid; [MSDSonline] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases

Note: This chemical does not meet GHS hazard criteria for 1.3% (5 of 383) of reports. Source: European Chemicals Agency (ECHA)
Signal: Danger Source: European Chemicals Agency (ECHA)
GHS Hazard Statements: H318 (49.6%): Causes serious eye damage [Danger Serious eye damage/eye irritation]; H319 (49.1%): Causes serious eye irritation [Warning Serious eye damage/eye irritation] Source: European Chemicals Agency (ECHA)
Precautionary Statement Codes: P264+P265, P280, P305+P351+P338, P305+P354+P338, P317, and P337+P317 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
ECHA C&L Notifications Summary: Aggregated GHS information provided per 383 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Reported as not meeting GHS hazard criteria per 5 of 383 reports by companies.; There are 3 notifications provided by 378 of 383 reports by companies with hazard statement code(s).; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)

Industry Uses: Intermediate Source: EPA Chemical Data Reporting (CDR)

Sources/Uses: Used to modify polyesters in automotive coatings; [Ullmann] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Industrial Processes with risk of exposure: Painting (Pigments, Binders, and Biocides) [Category: Paint] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases

Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record

Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.

Additional source coverage and match status

Source	Result	Checked
NIH PubChem PUG-View	Exact match	2026-08-31

A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.

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 3-HYDROXY-2,2-DIMETHYLPROPYL HYDROXYPIVALATE

INCI name

3-HYDROXY-2,2-DIMETHYLPROPYL HYDROXYPIVALATE

Description

Propanoic acid, 3-hydroxy-2,2-dimethyl-, 3-hydroxy-2,2-dimethylpropyl ester

Record provenance

Inventory reference: 95935
Imported identity: 3-HYDROXY-2,2-DIMETHYLPROPYL HYDROXYPIVALATE
Source update: 06/04/2018

European Commission CosIng source notes

Annex records for 3-HYDROXY-2,2-DIMETHYLPROPYL HYDROXYPIVALATE

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Key data

CAS

1115-20-4

—

Restriction

—

Function

NOT REPORTED: No function currently reported.

Ingredients with overlapping formulation functions

2-ALLYLOXYETHOXY GLUCOSIDENOT REPORTED

2-ETHYLHEXANOLNOT REPORTED

2-OCTYLACRYLATENOT REPORTED

3-(ACRYLOYLOXY)-2-HYDROXYPROPYL METHACRYLATENOT REPORTED

4,4'-ISOPROPYLIDENEDIPHENOLNOT REPORTED

4-T-BUTYL STYRENENOT REPORTED

6-AMINOCAPROIC ACIDNOT REPORTED

ACETYL SH-OCTAPEPTIDE-5 SP AMIDENOT 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 3-HYDROXY-2,2-DIMETHYLPROPYL HYDROXYPIVALATE appears in the CosIng inventory

The CosIng inventory lists 3-HYDROXY-2,2-DIMETHYLPROPYL HYDROXYPIVALATE 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.

3-HYDROXY-2,2-DIMETHYLPROPYL HYDROXYPIVALATE 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

3-HYDROXY-2,2-DIMETHYLPROPYL HYDROXYPIVALATE 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, 3-HYDROXY-2,2-DIMETHYLPROPYL HYDROXYPIVALATE carries the following function designation(s):

NOT REPORTED

CAS 1115-20-4 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 3-HYDROXY-2,2-DIMETHYLPROPYL HYDROXYPIVALATE

This page reproduces the CosIng inventory entry for 3-HYDROXY-2,2-DIMETHYLPROPYL HYDROXYPIVALATE 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 3-HYDROXY-2,2-DIMETHYLPROPYL HYDROXYPIVALATE 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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