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CAS 594-61-6 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 5810815/10/2010

METHYL LACTIC ACID

2-Hydroxy-2-methyl propanoic acid

METHYL LACTIC 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 594-61-6

CAS 594-61-6PubChem CID 11671

2-Hydroxyisobutyric acid

2-hydroxyisobutyric acid is a 2-hydroxy monocarboxylic acid that is isobutyric acid bearing a hydroxy substituent at position 2. It is a metabolite of methyl tertiary-butyl ether. It has a role as a human xenobiotic metabolite. It is functionally related to an isobutyric acid. It is a conjugate acid of a 2-hydroxyisobutyrate. — ChEBI

IUPAC name: 2-hydroxy-2-methylpropanoic acid

Molecular formula: C4H8O3
Molecular weight: 104.10 g/mol
Exact mass: 104.047344113 Da
XLogP3: -0.4
Topological polar surface area: 57.5 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 3
Covalent units: 1
Defined stereocentres: 0

Also known as

2-Methyllactic acidAcetonic acidalpha-Hydroxyisobutyric acidHydroxydimethylacetic acidPropanoic acid, 2-hydroxy-2-methyl-Lactic acid, 2-methyl-alpha-Hydroxyisobutanoic acid2-hydroxy-2-methyl-propanoic acid

16 more reported names

alpha-Hydroxy-alpha-methylpropanoic acidDMW250U2HFNSC-4505NSC-402158CHEBI:50129RefChem:87569209-848-82-Hydroxy-2-methylpropionic acida-hydroxyisobutyric acidl-2-methyllactate.alpha.-Hydroxyisobutyric acidHIBA.alpha.-Hydroxyisobutanoic acid2-hydroxy-2-methyl-propionic acidNSC 4505(CH3)2COHCOOH

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:50129
ChEMBL:CHEMBL1345148
EPA DTXSID:DTXSID4032954
PubMed:23095112
PubMed:22719309
PubMed:22586240
PubMed:22522543
PubMed:22433853
PubMed:21964884
PubMed:21931904
PubMed:21790171
PubMed:21649438
PubMed:21621918
PubMed:21582314
PubMed:21359215

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 METHYL LACTIC ACID

INCI name

METHYL LACTIC ACID

Description

2-Hydroxy-2-methyl propanoic acid

Record provenance

Inventory reference: 58108
Imported identity: METHYL LACTIC ACID
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for METHYL LACTIC ACID

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Key data

CAS

594-61-6

209-848-8

Restriction

—

Function

FRAGRANCE: Imparting an odour or taste. Creating a perceivable pleasant smell and/or masking a bad smell.

Official EU ingredient-name evidence

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

#16532 · METHYL LACTIC ACID

Ingredients with overlapping formulation functions

METHYL DIMETHYLMETHYLENECYCLOHEXANE CARBOXYLATEFRAGRANCE, SKIN CONDITIONING

METHYL EUGENOLFRAGRANCE, PERFUMING

METHYL GLYCYRRHIZATEFRAGRANCE

METHYL IONONESFRAGRANCE

METHYL LINALOOLFRAGRANCE; PERFUMING

METHYL N-METHYLANTHRANILATEFRAGRANCE

METHYL PHENYLBUTANOLFRAGRANCE, PERFUMING

METHYLBENZYL ACETATEFRAGRANCE, PERFUMING

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 METHYL LACTIC ACID appears in the CosIng inventory

The CosIng inventory lists METHYL LACTIC 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.

METHYL LACTIC 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

METHYL LACTIC 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, METHYL LACTIC ACID carries the following function designation(s):

FRAGRANCE

CAS 594-61-6 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 METHYL LACTIC ACID

This page reproduces the CosIng inventory entry for METHYL LACTIC 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 METHYL LACTIC 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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