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CAS 94050-90-5 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 8718915/10/2010

HYDROXYPHENOXY PROPIONIC ACID

(R)-2-(4-hydroxyphenoxy)propanoic acid

HYDROXYPHENOXY PROPIONIC ACID 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 94050-90-5

CAS 94050-90-5PubChem CID 179741

Hydroxyphenoxy propionic acid

IUPAC name: (2R)-2-(4-hydroxyphenoxy)propanoic acid

Molecular formula: C9H10O4
Molecular weight: 182.17 g/mol
Exact mass: 182.05790880 Da
XLogP3: 1.3
Topological polar surface area: 66.8 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 4
Covalent units: 1
Defined stereocentres: 1

Also known as

(R)-2-(4-Hydroxyphenoxy)propanoic acid(R)-(+)-2-(4-Hydroxyphenoxy)propionic acidRadianskin PW LS(R)-2-(4-Hydroxyphenoxy)propionic acidPropanoic acid, 2-(4-hydroxyphenoxy)-, (2R)-(R)-2-(p-hydroxyphenoxy)propionic acidWSI8A5QG10d-2-(4-hydroxyphenoxy)propionic acid

16 more reported names

Propanoic acid, 2-(4-hydroxyphenoxy)-, (R)-EC 407-960-3(+)-2-(4-HYDROXYPHENOXY)PROPIONIC ACIDRefChem:789536HYDROXYPHENOXY PROPIONIC ACID [INCI](R)-(+-)-2-(4-Hydroxyphenoxy)propionic acid407-960-3(+/-)-2-(4-Hydroxyphenoxy)propionic acidUNII-WSI8A5QG10(R)-(+/-)-2-(4-Hydroxyphenoxy)propionic acidCS-WAA0110AE F096918CS-W016000(R)-2-(4-Hydroxyphenoxy)propanoicacid(R)-2-(p-hydroxyphenoxy)-propionic acidAS-16010

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External database identifiers

EPA DTXSID:DTXSID20240360

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 HYDROXYPHENOXY PROPIONIC ACID

INCI name

HYDROXYPHENOXY PROPIONIC ACID

Description

(R)-2-(4-hydroxyphenoxy)propanoic acid

Record provenance

Inventory reference: 87189
Imported identity: HYDROXYPHENOXY PROPIONIC ACID
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for HYDROXYPHENOXY PROPIONIC ACID

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Key data

CAS

94050-90-5

407-960-3

Restriction

—

Function

SKIN CONDITIONING: Maintaining the skin in good condition.

Official EU ingredient-name evidence

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

#13314 · HYDROXYPHENOXY PROPIONIC ACID

Ingredients with overlapping formulation functions

HYDROXYMETHOXYPHENYL PROPYLMETHYLMETHOXYBENZOFURANSKIN CONDITIONING

HYDROXYMETHYL PREGNACALCIFEROLHUMECTANT, SKIN CONDITIONING, SKIN PROTECTING

HYDROXYOCTACOSANYL HYDROXYSTEARATESKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

HYDROXYPALMITOYL SPHINGANINEHAIR CONDITIONING, SKIN CONDITIONING

HYDROXYPHENYL PROPAMIDOBENZOIC ACIDSKIN CONDITIONING

HYDROXYPHENYL PROPIONAMIDEANTIOXIDANT, ASTRINGENT, BLEACHING, SKIN CONDITIONING, SKIN PROTECTING

HYDROXYPHENYL THIAZINANE CARBOXYLIC ACIDSKIN CONDITIONING, SKIN PROTECTING

HYDROXYPINACOLONE RETINOATESKIN CONDITIONING

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 HYDROXYPHENOXY PROPIONIC ACID appears in the CosIng inventory

The CosIng inventory lists HYDROXYPHENOXY PROPIONIC ACID 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.

HYDROXYPHENOXY PROPIONIC ACID 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

HYDROXYPHENOXY PROPIONIC ACID 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, HYDROXYPHENOXY PROPIONIC ACID carries the following function designation(s):

SKIN CONDITIONING

CAS 94050-90-5 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 HYDROXYPHENOXY PROPIONIC ACID

This page reproduces the CosIng inventory entry for HYDROXYPHENOXY PROPIONIC ACID 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 HYDROXYPHENOXY PROPIONIC ACID 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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