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InventoryRef 5418012/07/2019

2,3-BUTANEDIOL

2,3-Butylene Glycol

2,3-BUTANEDIOL is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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.

Chemical identity and properties

PubChem 2D chemical structure for CAS 24347-58-8
CAS 24347-58-8PubChem CID 225936

(2R,3R)-Butanediol

(R,R)-butane-2,3-diol is the (R,R) diastereoisomer of butane-2,3-diol. It has a role as a Saccharomyces cerevisiae metabolite. It is an enantiomer of a (S,S)-butane-2,3-diol. ChEBI

IUPAC name
(2R,3R)-butane-2,3-diol
Molecular formula
C4H10O2
Molecular weight
90.12 g/mol
Exact mass
90.068079557 Da
XLogP3
-0.9
Topological polar surface area
40.5 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
2

Also known as

(R,R)-Butane-2,3-diol2,3-Butanediol, (-)-(R,R)-2,3-Butylene glycol(R,R)-(-)-Butane-2,3-diolOR02B2286ACHEBI:169822,3-Butanediol, [R-(R*,R*)]-2,3-BUTANEDIOL, (R-(R*,R*))-
16 more reported names
RefChem:934707246-186-9(R,R)-2,3-butanediol(2R,3R)-(-)-2,3-Butanediol(2R,3R)-2,3-butanediol(R,R)-(-)-2,3-Butanediol6982-25-8D-(-)-2,3-Butanediol(-)-2,3-butanediol2,3-Butanediol, threo-(R,R)-(-)-2,3-Butylene GlycolUNII-6510BGK6C5Levo-2,3-ButanediolD(-)-2,3-butanediolL-(-)-2,3-Butanediol(-)-(2R,3R)-Butanediol
External database identifiers

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

PubChem 2D chemical structure for CAS 513-85-9
CAS 513-85-9PubChem CID 262

2,3-Butanediol

Butane-2,3-diol is a butanediol in which hydroxylation is at C-2 and C-3. It is a glycol, a secondary alcohol and a butanediol. ChEBI

IUPAC name
butane-2,3-diol
Molecular formula
C4H10O2
Molecular weight
90.12 g/mol
Exact mass
90.068079557 Da
XLogP3
-0.9
Topological polar surface area
40.5 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

2,3-butylene glycol2,3-DihydroxybutaneDimethylethylene glycolPseudobutylene glycolSym-dimethylethylene glycolCHEBI:62064RefChem:441921208-173-6
16 more reported names
Dimethylene glycolDL-2,3-ButanediolOmega-butylene glycol2,3-Butanediol, (R*,R*)-(.+/-.)-2,3-butanodiol2,3-Butanediol(mixture of stereoisomers)Butan-2,3-diolCCRIS 5501HSDB 1505EINECS 208-173-6BRN 09691652,3-Butanediol; >98%UNII-45427ZB5IJ(+/-)-2,3-BUTANEDIOL(S,S)-(+)-2,3-Butylene GlycolNSC-249246
External database identifiers

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

PubChem 2D chemical structure for CAS 5341-95-7
CAS 5341-95-7PubChem CID 220010

Meso-2,3-Butanediol

Meso-butane-2,3-diol is the meso diastereoisomer of butane-2,3-diol. It has a role as a metabolite. ChEBI

IUPAC name
(2R,3S)-butane-2,3-diol
Molecular formula
C4H10O2
Molecular weight
90.12 g/mol
Exact mass
90.068079557 Da
XLogP3
-0.9
Topological polar surface area
40.5 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
2

Also known as

2,3-Butanediol, meso-2,3-Butanediol, erythro-2,3-Butanediol, (R*,S*)-NSC 2164F5IA8X9O8MNSC-2164RefChem:1048402(R,S)-2,3-butanediol
16 more reported names
(R,S)-butane-2,3-diol(2r,3s)-2,3-butanediolmeso-butane-2,3-diolmeso-butanediolerythro-2,3-Butanediol2,3-BUTANEDIOL (MESO)UNII-F5IA8X9O8Mmeso-2,3-butylene glycol2,3-Butanediol, (2R,3S)-rel-(2s,3r)-2,3-butanediolBU9meso-butylene glycol2, meso-(R,S)-butylene glycolAI3-00959erythro-butane-2,3-diol
External database identifiers

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 2,3-BUTANEDIOL

INCI name

2,3-BUTANEDIOL

Description

2,3-Butylene Glycol

Record provenance

Inventory reference
54180
Imported identity
2,3-BUTANEDIOL
Source update
12/07/2019
European Commission CosIng source notes

Key data

CAS
513-85-9; 5341-95-7; 24347-58-8
EC
208-173-6; 823-920-1; 246-186-9
Restriction
Function
FRAGRANCE
Imparting an odour or taste. Creating a perceivable pleasant smell and/or masking a bad smell.
HUMECTANT
Retaining and/or preserving the moisture in a product during use.
SKIN CONDITIONING
Maintaining the skin in good condition.
SOLVENT
Dissolving other components of cosmetics. Solvents are usually liquids (aqueous and nonaqueous).

Official EU ingredient-name evidence

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

Ingredients with overlapping formulation functions

Additional official and scientific sources

11 external databases to check this identity in

How 2,3-BUTANEDIOL appears in the CosIng inventory

The CosIng inventory lists 2,3-BUTANEDIOL 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.

2,3-BUTANEDIOL is also tagged with 4 cosmetic functions 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

2,3-BUTANEDIOL 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, 2,3-BUTANEDIOL carries the following function designation(s):

CAS 513-85-9; 5341-95-7; 24347-58-8 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.

Use the INCI Checker to screen a full ingredient list across selected markets, or compare this substance across all supported market datasets.

Source note for 2,3-BUTANEDIOL

This page reproduces the CosIng inventory entry for 2,3-BUTANEDIOL 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 2,3-BUTANEDIOL and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

Tools & next steps

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