Official EU label nameGlossary entry 7706

CUCURBITURILS

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 0 of 13 indexed market datasets: 0 country records and 0 EU Annex records. Every result and evidence gap is listed below.

0 markets with evidence

Markets checked

Markets with evidence

Evidence gaps

Resolved identifiers

Resolved substance identity

CAS:80262-44-8259886-51-6259886-50-5259886-49-2

Ingredient index records:

CUCURBITURILS

Cosmetic functions: ABSORBENT; CHELATING; EMULSION STABILISING; FILM FORMING

Cucurbiturils are cyclic molecules that consist of glycouril units linked by methylene bridges, where n can be 5, 6, 7 or 8.

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1 matched or reported name

CUCURBITURILS

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name CUCURBITURILS.

That is a statement about this inventory, not about the law: no imported rule is not evidence that a substance is permitted. A rule may exist under a different name, under a CAS or EC number this glossary entry does not carry, or in a dataset not yet imported.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 259886-49-2

CAS 259886-49-2PubChem CID 6096206

Cucurbit[5]uril

Cucurbit[5]uril is a cucurbituril. — ChEBI

Molecular formula: C30H30N20O10
Molecular weight: 830.7 g/mol
Exact mass: 830.24537723 Da
XLogP3: -5.7
Topological polar surface area: 236.0 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 10
Covalent units: 1
Defined stereocentres: 0

Also known as

cucurbit(5)urilCB[5]Cucurbit[n]uril aCHEBI:51435VKSVEHYLRGITRK-UHFFFAOYSA-N

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:51435
PubMed:22624150
PubMed:22471316
PubMed:22129203
PubMed:21761833
PubMed:21404420
PubMed:20379551
PubMed:19191519
PubMed:19175303
PubMed:18463754
PubMed:17960900
PubMed:17909488
PubMed:15148439

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 259886-50-5

CAS 259886-50-5PubChem CID 6096207

Cucurbit[7]uril (CB[7]) hydrate

Cucurbit[7]uril is a cucurbituril. — ChEBI

IUPAC name: 3,5,8,10,13,15,18,20,23,25,28,30,33,35,36,38,40,42,46,48,50,52,54,56,58,60,62,64-octacosazadocosacyclo[30.3.3.36,7.311,12.316,17.321,22.326,27.22,36.231,38.13,35.15,8.110,13.115,18.120,23.125,28.130,33.140,46.142,64.148,50.152,54.156,58.160,62]heptacontane-39,41,43,44,45,47,49,51,53,55,57,59,61,63-tetradecone

Molecular formula: C42H42N28O14
Molecular weight: 1163.0 g/mol
Exact mass: 1162.34352813 Da
XLogP3: -8.0
Topological polar surface area: 330.0 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 14
Covalent units: 1
Defined stereocentres: 0

Also known as

Cucurbit(7)uril (CB(7)) hydrateRefChem:579526811-749-5cucurbit[7]urilCucurbit[7]uril hydrateCB[7]QQ7SAMPL3, H2

7 more reported names

CHEBI:51434ZDOBFUIMGBWEAB-UHFFFAOYSA-NC42H42N28O14BS-51452HY-104086CS-0030779T9068

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External database identifiers

ChEBI:CHEBI:51434
ChEMBL:CHEMBL3770339
EPA DTXSID:DTXSID301316938
PubMed:23009313
PubMed:22969015
PubMed:22959366
PubMed:22946446
PubMed:22860771
PubMed:22852591
PubMed:22710743
PubMed:22690827
PubMed:22683553
PubMed:22646470
PubMed:22635275
PubMed:22618533

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 259886-51-6

CAS 259886-51-6PubChem CID 16133299

Cucurbit[8]uril

Cucurbit[8]uril is a cucurbituril. — ChEBI

IUPAC name: 3,5,8,10,13,15,18,20,23,25,28,30,33,35,38,40,41,43,45,47,51,53,55,57,59,61,63,65,67,69,71,73-dotriacontazapentacosacyclo[35.3.3.36,7.311,12.316,17.321,22.326,27.331,32.22,41.236,43.13,40.15,8.110,13.115,18.120,23.125,28.130,33.135,38.145,51.147,73.153,55.157,59.161,63.165,67.169,71]octacontane-44,46,48,49,50,52,54,56,58,60,62,64,66,68,70,72-hexadecone

Molecular formula: C48H48N32O16
Molecular weight: 1329.1 g/mol
Exact mass: 1328.39260358 Da
XLogP3: -9.1
Topological polar surface area: 377.0 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 16
Covalent units: 1
Defined stereocentres: 0

Also known as

CUCURBIT(8)URILCB[8]Cucurbit[8]uril hydrateCucurbit[8]uril (CB[8]) hydrate, 99+%C48H48N32O16Cucurbit[8]uril (CB[8]) hydrateCurcubit[8]urilCucurbit[8]uril hydrate contains acid of crystalization

8 more reported names

SAMPL3, H3Cucurbit[8]uril (CB[8])CHEBI:51433BS-14119DA-52159HY-103689CS-0031079C8L

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External database identifiers

ChEBI:CHEBI:51433
PubMed:23042328
PubMed:23008831
PubMed:22907929
PubMed:22842400
PubMed:22832698
PubMed:22758793
PubMed:22735549
PubMed:22730071
PubMed:22587703
PubMed:22388790
PubMed:22366954
PubMed:22336996

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 80262-44-8

CAS 80262-44-8PubChem CID 196163

Cucurbituril

Cucurbit[6]uril is a cucurbituril. — ChEBI

IUPAC name: 3,5,8,10,13,15,18,20,23,25,28,30,31,33,35,37,41,43,45,47,49,51,53,55-tetracosazanonadecacyclo[25.3.3.36,7.311,12.316,17.321,22.22,31.226,33.13,30.15,8.110,13.115,18.120,23.125,28.135,41.137,55.143,45.147,49.151,53]hexacontane-34,36,38,39,40,42,44,46,48,50,52,54-dodecone

Molecular formula: C36H36N24O12
Molecular weight: 996.8 g/mol
Exact mass: 996.29445268 Da
XLogP3: -6.8
Topological polar surface area: 283.0 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 12
Covalent units: 1
Defined stereocentres: 0

Also known as

cucurbit(n)urilcucurbit(n)urilsRefChem:128733CHEBI:51431cucurbit[6]urilCucurbit[6]uril hydrateCucurbit(6)urilCucurbit[n]uril b

11 more reported names

CB[6]CHEBI:51432Cucurbit[6]uril (CB[6]) hydrate, 99%Cucurbit[6]uril hydrate, contains acid of crystalizationCucurbituril [6]C36H36N24O12TSH-00019HY-W130354BS-17595CS-01884403,5,8,10,13,15,18,20,23,25,28,30,31,33,35,37,41,43,45,47,49,51,53,55-tetracosazanonadecacyclo[25.3.3.36,7.311,12.316,17.321,22.2

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:51432
EPA DTXSID:DTXSID101317823
PubMed:22961988
PubMed:22946446
PubMed:22864828
PubMed:22854225
PubMed:22743794
PubMed:22717946
PubMed:22650758
PubMed:22595678
PubMed:22545413
PubMed:22540671
PubMed:22512431
PubMed:22471316

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

Additional authoritative substance research

Each link searches that source for this identity. A link is a research route, not a claim that the source holds an exact record. What each source is, and its legal weight

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 US EPA CompTox CTX APIs

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Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

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