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InventoryRef 9162329/10/2014

CURCUBITURILS

2,20:3,19-Dimethano-2,3,4a,5a,6a,7a,8a,9a,10a,11a,12a,13a,14a,15a,16a,17a,19,20,21a,22a,23a,24a,25a,26a,27a,28a,29a,30a,31a,32a,33a,34a-dotriacontaazabispentaleno[1''',6''':5'',6'',7'']cycloocta[1'',2'',3'':3'',4'']pent…

CURCUBITURILS 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 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 Ų
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
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 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 Ų
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
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 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 Ų
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
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 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 Ų
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
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 CURCUBITURILS

INCI name

CURCUBITURILS

Description

2,20:3,19-Dimethano-2,3,4a,5a,6a,7a,8a,9a,10a,11a,12a,13a,14a,15a,16a,17a,19,20,21a,22a,23a,24a,25a,26a,27a,28a,29a,30a,31a,32a,33a,34a-dotriacontaazabispentaleno[1''',6''':5'',6'',7'']cycloocta[1'',2'',3'':3'',4'']pentaleno[1'',6'':5',6',7']cycloocta[1',2',3':3',4']pentaleno[1',6':5,6,7]cycloocta[1,2,3-gh:1',2',3'-g'h']cycloocta[1,2,3-cd:5,6,7-c'd']dipentalene-1,4,6,8,10,12,14,16,18,21,23,25,27,29,31,33-hexadecone, hexadecahydro-, stereoisomer,2,18:3,17-Dimethano-2,3,4a,5a,6a,7a,8a,9a,10a,11a,12a,13a,14a,15a,17,18,19a,20a,21a,22a,23a,24a,25a,26a,27a,28a,29a,30a-octacosaazabispentaleno[1''',6''':5'',6'',7'']cycloocta[1'',2'',3'':3'',4'']pentaleno[1'',6'':5',6',7']cycloocta[1',2',3':3',4']pentaleno[1',6':5,6,7]cycloocta[1,2,3-cd:1',2',3'-gh]pentalene-1,4,6,8,10,12,14,16,19,21,23,25,27,29-tetradecone, tetradecahydro-, stereoisomer,1H,4H,12H,15H-2,14:3,13-Dimethano-5H,6H,7H,8H,9H,10H,11H,16H,17H,18H,19H,20H,21H,22H-2,3,4a,5a,6a,7a,8a,9a,10a,11a,13,14,15a,16a,17a,18a,19a,20a,21a,22a-eicosaazabispentaleno[1'',6'':5',6',7']cycloocta[1',2',3':3',4']pentaleno[1',6':5,6,7]cycloocta[1,2,3-cd:1',2',3'-gh]pentalene-1,4,6,8,10,12,15,17,19,21-decone, decahydro-, stereoisomer

Record provenance

Inventory reference
91623
Imported identity
CURCUBITURILS
Source update
29/10/2014
European Commission CosIng source notes

Key data

CAS
80262-44-8,259886-49-2,259886-50-5,259886-51-6
EC
Restriction
Function
ABSORBENT
Taking up water- and/or oil-soluble (dissolved or finely dispersed) substances.
CHELATING
Forming complexes with metal ions which could affect the stability and/or appearance of cosmetics.
EMULSION STABILISING
Helping the process of emulsification and improving emulsion stability and shelf-life.
FILM FORMING
Producing (upon application) a continuous film on the skin, hair or nails.

Ingredients with overlapping formulation functions

Additional official and scientific sources

11 external databases to check this identity in

How CURCUBITURILS appears in the CosIng inventory

The CosIng inventory lists CURCUBITURILS 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.

CURCUBITURILS 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

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

CAS 80262-44-8,259886-49-2,259886-50-5,259886-51-6 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.

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 CURCUBITURILS

This page reproduces the CosIng inventory entry for CURCUBITURILS 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 CURCUBITURILS 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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