What other records share CAS 3779-63-3?

CAS 3779-63-3 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

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InventoryRef 9664515/04/2019

HDI ISOCYANURATE TRIMER

(2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene) isocyanate; 1,3,5-tris(6-isocyanatohexyl)-1,3,5-triazinane-2,4,6-trione; tris(6-isocyanatohexyl)-1,3,5-triazinane-2,4,6-trione

HDI ISOCYANURATE TRIMER 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 3779-63-3

CAS 3779-63-3PubChem CID 77411

Tris(6-isocyanatohexyl)isocyanurate

1,3,5-tris(6-isocyanatohexyl)-1,3,5-triazin-2,4,6-trione is a triisocyanate being a derivative of isocyanuric acid with a 6-isocyanatohexyl group at each of the 1-, 3- and 5-positions. It is functionally related to an isocyanuric acid. — ChEBI

IUPAC name: 1,3,5-tris(6-isocyanatohexyl)-1,3,5-triazinane-2,4,6-trione

Molecular formula: C24H36N6O6
Molecular weight: 504.6 g/mol
Exact mass: 504.26963289 Da
XLogP3: 6.0
Topological polar surface area: 149.0 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 9
Covalent units: 1
Defined stereocentres: 0

Also known as

Hexamethylene Diisocyanate Isocyanurate Trimer(2,4,6-Trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene) isocyanate1,3,5-Triazine-2,4,6(1H,3H,5H)-trione, 1,3,5-tris(6-isocyanatohexyl)-EINECS 223-242-0DE5PQE5835HDI ISOCYANURATEHMDI ISOCYANURATEHMDI CYCLIC TRIMER

16 more reported names

HDI ISOCYANURATE TRIMERHMDI ISOCYANURATE TRIMEREC 223-242-0Isocyanic acid, (2,4,6-trioxo-s-triazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene) esterTRIS(HEXAMETHYLENE TRIISOCYANATE)1,6-HEXAMETHYLENEDIISOCYANATE TRIMERn,n',n''-tris(6-isocyanatohexyl)isocyanurateHEXAMETHYLENE DIISOCYANATE CYCLIC TRIMER1,6-HEXAMETHYLENE DIISOCYANATE ISOCYANURATEISOCYANURATE TRIMER OF HEXAMETHYLENEDIISOCYANATEISOCYANURATE-BASED HEXAMETHYLENE DIISOCYANATE TRIMERISOCYANIC ACID, (TRIOXO-S-TRIAZINE-1,3,5(2H,4H,6H)-TRIYL)TRIS(HEXAMETHYLENE) ESTERTRIS(6-ISOCYANATOHEXYL)-1,3,5-TRIAZINE-2,4,6(1H,3H,5H)-TRIONE, 1,3,5-RefChem:900259HDI ISOCYANURATE TRIMER [INCI]3M Brand IsoFill A2 Hardener Part B

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:59098
EPA DTXSID:DTXSID7027548

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 HDI ISOCYANURATE TRIMER

INCI name

HDI ISOCYANURATE TRIMER

Description

(2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene) isocyanate; 1,3,5-tris(6-isocyanatohexyl)-1,3,5-triazinane-2,4,6-trione; tris(6-isocyanatohexyl)-1,3,5-triazinane-2,4,6-trione

Record provenance

Inventory reference: 96645
Imported identity: HDI ISOCYANURATE TRIMER
Source update: 15/04/2019

European Commission CosIng source notes

Annex records for HDI ISOCYANURATE TRIMER

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Key data

CAS

3779-63-3

223-242-0 (I)

Restriction

—

Function

NOT REPORTED: No function currently reported.

Ingredients with overlapping formulation functions

GOSSYPIUM HERBACEUM LEAF EXTRACTNOT REPORTED

GUANAZOLENOT REPORTED

HAEMATOXYLUM CAMPECHIANUM POWDERNOT REPORTED

HAIR EXTRACTNOT REPORTED

HEPTAPEPTIDE-43NOT REPORTED

HEPTAPEPTIDE-49NOT REPORTED

HEPTAPEPTIDE-50NOT REPORTED

HEPTAPEPTIDE-51NOT REPORTED

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 chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox 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

How HDI ISOCYANURATE TRIMER appears in the CosIng inventory

The CosIng inventory lists HDI ISOCYANURATE TRIMER 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.

HDI ISOCYANURATE TRIMER 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

HDI ISOCYANURATE TRIMER 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, HDI ISOCYANURATE TRIMER carries the following function designation(s):

NOT REPORTED

CAS 3779-63-3 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 HDI ISOCYANURATE TRIMER

This page reproduces the CosIng inventory entry for HDI ISOCYANURATE TRIMER 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 HDI ISOCYANURATE TRIMER 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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