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InventoryRef 9346030/09/2015

FUCOSYLLACTOSE

(2R,3R,4R,5R)-4-[(2S,3R,4S,5R,6R)-4,5-dihydroxy-6- (hydroxymethyl)-3-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan -2-yl]oxy-2,3,5,6-tetrahydroxyhexanal

FUCOSYLLACTOSE 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 41263-94-9
CAS 41263-94-9PubChem CID 170484

2'-Fucosyllactose

2'-Fucosyllactose is under investigation in clinical trial NCT03847467 (Pilot and Feasibility Study of 2'-FL as a Dietary Supplement in IBD Patients Receiving Stable Maintenance Anti-tnf Therapy). DrugBank

IUPAC name
(2R,3R,4R,5R)-4-[(2S,3R,4S,5R,6R)-4,5-dihydroxy-6-(hydroxymethyl)-3-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-2-yl]oxy-2,3,5,6-tetrahydroxyhexanal
Molecular formula
C18H32O15
Molecular weight
488.4 g/mol
Exact mass
488.17412031 Da
XLogP3
-6.1
Topological polar surface area
256.0 Ų
Hydrogen-bond donors
10
Hydrogen-bond acceptors
15
Covalent units
1
Defined stereocentres
14

Also known as

2'-O-fucosyllactoseLactose, 2'-o-fucosyl-XO2533XO8R2'-o-l-fucosyl-d-lactoseRefChem:80341807-054-1CHEBI:1471552'-Fucosyl-D-lactose
16 more reported names
2'-Fucosyllactose - Synthetic5-O-DMT-thymidine 3'2'-Fucosyllactose (~90%)2-FLFuc-a-1,2-Gal-b-1,4-GlcCID 1704842 inverted exclamation marka-Fucosyl-D-lactose2/'-FUCOSYLLACTOSEUNII-XO2533XO8R2'-Fucosyllactose - min 90%HWHQUWQCBPAQQH-BWRPKUOHSA-NHY-N9965TN6796EBC-616958BS-482622 inverted exclamation marka-Fucosyllactose
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 FUCOSYLLACTOSE

INCI name

FUCOSYLLACTOSE

Description

(2R,3R,4R,5R)-4-[(2S,3R,4S,5R,6R)-4,5-dihydroxy-6- (hydroxymethyl)-3-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan -2-yl]oxy-2,3,5,6-tetrahydroxyhexanal

Record provenance

Inventory reference
93460
Imported identity
FUCOSYLLACTOSE
Source update
30/09/2015
European Commission CosIng source notes

Key data

EC
Restriction
Function
SKIN CONDITIONING
Maintaining the skin in good condition.
SKIN PROTECTING
Helping to avoid harmful effects to the skin from external factors.

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 FUCOSYLLACTOSE appears in the CosIng inventory

The CosIng inventory lists FUCOSYLLACTOSE 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.

FUCOSYLLACTOSE is also tagged with 2 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

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

CAS 41263-94-9 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 FUCOSYLLACTOSE

This page reproduces the CosIng inventory entry for FUCOSYLLACTOSE 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 FUCOSYLLACTOSE 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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