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InventoryRef 7633515/10/2010

GALACTONOLACTONE

Galactono-1,4-lactone

GALACTONOLACTONE 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 1668-08-2
CAS 1668-08-2PubChem CID 6857365

L-galactono-1,4-lactone

L-galactono-1,4-lactone is a galactonolactone that is 3,4-dihydroxydihydrofuran-2(3H)-one substituted by a 1,2-dihydroxyethyl group at position 5 (the 3S,4S,5R-isomer). It has a role as a plant metabolite. It is functionally related to a L-galactonic acid. — ChEBI

IUPAC name
(3S,4S,5R)-5-[(1S)-1,2-dihydroxyethyl]-3,4-dihydroxyoxolan-2-one
Molecular formula
C6H10O6
Molecular weight
178.14 g/mol
Exact mass
178.04773803 Da
XLogP3
-2.0
Topological polar surface area
107.0 Ų
Hydrogen-bond donors
4
Hydrogen-bond acceptors
6
Covalent units
1
Defined stereocentres
4

Also known as

L-galactono-gamma-lactone58UBG0IB0RGalactono-gamma-lactone, L-NSC-25282CHEBI:17464Galactonic acid gamma-lactone, L-Galactonic acid, gamma-lactone, L-(3S,4S,5R)-5-((1S)-1,2-dihydroxyethyl)-3,4-dihydroxyoxolan-2-one
16 more reported names
RefChem:633489GlyTouCan:G83200MX(3S,4S,5R)-5-((S)-1,2-Dihydroxyethyl)-3,4-dihydroxydihydrofuran-2(3H)-oneL-Galactonic acid, gamma-lactoneL-GALACTONIC ACID GAMMA-LACTONEL-Galactonic acid, .gamma.-lactonegamma-L-GalactonolactoneUNII-58UBG0IB0RL-galactonate-gamma-lactoneL-galactonic acid-g-lactoneL-galactonic acid gamma lactoneL-Galactonic acid, |A-lactoneL-galactonic acid-gamma-lactoneL- Galactonic acid gamma- lactoneL-Galactono-1,4-lactone ,98%L-GALACTONO-.GAMMA.-LACTONE
Open full PubChem recordPubChem annotations3D structure image
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 2782-07-2
CAS 2782-07-2PubChem CID 97165

D-Galactono-1,4-Lactone

D-galactono-1,4-lactone is a galactonolactone derived from D-galactonic acid. It has a role as a human metabolite. It is functionally related to a D-galactonic acid. — ChEBI

IUPAC name
(3R,4R,5S)-5-[(1R)-1,2-dihydroxyethyl]-3,4-dihydroxyoxolan-2-one
Molecular formula
C6H10O6
Molecular weight
178.14 g/mol
Exact mass
178.04773803 Da
XLogP3
-2.0
Topological polar surface area
107.0 Ų
Hydrogen-bond donors
4
Hydrogen-bond acceptors
6
Covalent units
1
Defined stereocentres
4

Also known as

gamma-D-galactonolactoneD-galactonic acid gamma-lactone1,4-D-GalactonolactoneD-Galactonic acid, gamma-lactoneCHEBI:15895(3R,4R,5S)-5-((1R)-1,2-dihydroxyethyl)-3,4-dihydroxyoxolan-2-oneRefChem:130544GlyTouCan:G97368GU
16 more reported names
220-484-95-(1,2-dihydroxyethyl)-3,4-dihydroxyoxolan-2-one(3R,4R,5S)-5-((R)-1,2-Dihydroxyethyl)-3,4-dihydroxydihydrofuran-2(3H)-oneD-Galactonic acid 1,4-lactoneD-galactono-gamma-lactoneD-galactonate-gamma-lactoneD-Galactonic 1,4-lactoneD-Galactono-I(3)-IactonD-galactonic acid g-lactonegalactonic acid gamma-lactoneGalactonic acid-1,4-lactoneD-Galactonic acid, ?-lactoneD-Galactonic acid, |A-lactoneD-GALACTONO-14-LACTONEEINECS 220-484-9D-(-)-galactonic acid gamma-lactone
Open full PubChem recordPubChem annotations3D structure image
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 GALACTONOLACTONE

INCI name

GALACTONOLACTONE

Description

Galactono-1,4-lactone

Record provenance

Inventory reference
76335
Imported identity
GALACTONOLACTONE
Source update
15/10/2010
European Commission CosIng source notes
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Key data

CAS
2782-07-2 / 1668-08-2
EC
220-484-9 / -
Restriction
—
Function
HUMECTANT
Retaining and/or preserving the moisture in a product during use.

Official EU ingredient-name evidence

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

#10721 · GALACTONOLACTONE

Ingredients with overlapping formulation functions

GALACTOMYCES FERMENT FILTRATEHUMECTANT
GALACTOMYCES/MILK FERMENT FILTRATEHUMECTANT
GALACTOMYCES/PHELLINUS LINTEUS EXTRACT FERMENT FILTRATEHUMECTANT, SKIN CONDITIONING, SKIN PROTECTING
GALACTOMYCES/SOYMILK FERMENT FILTRATEHUMECTANT
GALACTOOLIGOSACCHARIDESHUMECTANT, SKIN CONDITIONING
GALACTURONIC ACIDBUFFERING, CHELATING, HUMECTANT
GALLOYL DIPEPTIDE-50 AMIDEHUMECTANT, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SKIN PROTECTING
GALLOYL DIPEPTIDE-8 AMIDEHUMECTANT, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SKIN PROTECTING

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 chemicalsPubChem PUG RESTEU Safety Gate cosmetic product alertsECHA CHEMUS EPA CompToxCosmetic Ingredient Review safety assessmentsFDA Global Substance Registration SystemILO/WHO International Chemical Safety CardsJapan NITE-CHRIPNIOSH Pocket Guide to Chemical HazardsOECD eChemPortal

How GALACTONOLACTONE appears in the CosIng inventory

The CosIng inventory lists GALACTONOLACTONE 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.

GALACTONOLACTONE 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

GALACTONOLACTONE 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, GALACTONOLACTONE carries the following function designation(s):

CAS 2782-07-2 / 1668-08-2 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 GALACTONOLACTONE

This page reproduces the CosIng inventory entry for GALACTONOLACTONE 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 GALACTONOLACTONE 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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