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CAS 3333-62-8 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 5627215/10/2010

FLUORESCENT BRIGHTENER 236

2H-1-Benzopyran-2-one, 7-(2H-Naphtho[1,2-d]Triazol-2-yl)-3-Phenyl-; (CI 55135)

FLUORESCENT BRIGHTENER 236 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 3333-62-8

CAS 3333-62-8PubChem CID 633683

Fluorescent brightener 236

IUPAC name: 7-benzo[e]benzotriazol-2-yl-3-phenylchromen-2-one

Molecular formula: C25H15N3O2
Molecular weight: 389.4 g/mol
Exact mass: 389.116426730 Da
XLogP3: 6.2
Topological polar surface area: 57.0 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 4
Covalent units: 1
Defined stereocentres: 0

Also known as

2H-1-Benzopyran-2-one, 7-(2H-naphtho(1,2-d)triazol-2-yl)-3-phenyl-C.I. Fluorescent Brightener 236EINECS 222-067-73-Phenyl-7-(1,2-2H-naphthotriazolyl)coumarin7NTPC cpd719IIE6H4M2H-1-Benzopyran-2-one, 7-(2H-naphtho[1,2-d]triazol-2-yl)-3-phenyl-7-(2H-Naphtho(1,2-d)triazol-2-yl)-3-phenyl-2-benzopyrone

16 more reported names

7-(2H-Naphtho[1,2-d]triazol-2-yl)-3-phenyl-2-benzopyrone7-(2h-naphtho(1,2-d)triazol-2-yl)-3-phenylcoumarinC.I. 551357-(2H-Naphtho[1,2-d]triazol-2-yl)-3-phenylcoumarin3-PHENYL-7-(2H-NAPHTHO(1,2-D)TRIAZOL-2-YL)COUMARINCOUMARIN, 7-(2H-NAPHTHO(1,2-D)TRIAZOL-2-YL)-3-PHENYL-NAPHTHO(1,2-D)TRIAZOL-2-YL)-3-PHENYL-2H-1-BENZOPYRAN-2-ONE, 7-(2H-RefChem:599382FLUORESCENT BRIGHTENER 236 [INCI]2H-1-Benzopyran-2-one, 7-(2H-naphtho1,2-dtriazol-2-yl)-3-phenyl-222-067-77-(2h-naphtho[1,2-d]triazol-2-yl)-3-phenyl-2h-1-benzopyran-2-one7-(2H-Naphtho[1,2-d][1,2,3]triazol-2-yl)-3-phenyl-2H-chromen-2-oneUNII-719IIE6H4MOprea1_482806Oprea1_541948

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External database identifiers

EPA DTXSID:DTXSID6025698
PubMed:15020193

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 FLUORESCENT BRIGHTENER 236

INCI name

FLUORESCENT BRIGHTENER 236

Description

2H-1-Benzopyran-2-one, 7-(2H-Naphtho[1,2-d]Triazol-2-yl)-3-Phenyl-; (CI 55135)

Record provenance

Inventory reference: 56272
Imported identity: FLUORESCENT BRIGHTENER 236
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for FLUORESCENT BRIGHTENER 236

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Key data

CAS

3333-62-8

222-067-7

Restriction

—

Function

HAIR DYEING: Imparting color to hair. Hair dyeing preparations may be temporary, semi-permanent, or permanent, depending on the length of time the colorant remains on the hair.

Official EU ingredient-name evidence

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

#10554 · FLUORESCENT BRIGHTENER 236

Ingredients with overlapping formulation functions

EPICATECHINANTIOXIDANT; ASTRINGENT; DEODORANT; HAIR DYEING; ORAL CARE; SKIN PROTECTING; SKIN CONDITIONING - MI…

ETHYLENEDIAMINO PG-PROPYL PEG-4 DIMETHICONEHAIR CONDITIONING; HAIR DYEING; HAIR FIXING; HAIR WAVING OR STRAIGHTENING

FAST GREEN FCFHAIR DYEING

FERRIC AMMONIUM CITRATEHAIR DYEING

HC BLUE NO. 10HAIR DYEING

HC BLUE NO. 11HAIR DYEING

HC BLUE NO. 12HAIR DYEING

HC BLUE NO. 13HAIR DYEING

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 FLUORESCENT BRIGHTENER 236 appears in the CosIng inventory

The CosIng inventory lists FLUORESCENT BRIGHTENER 236 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.

FLUORESCENT BRIGHTENER 236 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

FLUORESCENT BRIGHTENER 236 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, FLUORESCENT BRIGHTENER 236 carries the following function designation(s):

HAIR DYEING

CAS 3333-62-8 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 FLUORESCENT BRIGHTENER 236

This page reproduces the CosIng inventory entry for FLUORESCENT BRIGHTENER 236 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 FLUORESCENT BRIGHTENER 236 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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Tools & next steps

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