Is BASIC BLUE 75 safe to use in EU cosmetics?

BASIC BLUE 75 is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Always verify against the current official CosIng database before formulating.

What other records share CAS 73398-25-1?

CAS 73398-25-1 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.

How do I check if my formula contains BASIC BLUE 75?

Use the INCI Checker to screen a full ingredient list across selected markets, or use the substance market comparison to review this identity across all supported market datasets.

InventoryRef 8638615/10/2010

BASIC BLUE 75

Phenoxazin-5-ium, 3-(diethylamino)-7-(phenylamino)-, trichlorozincate (1-)

BASIC BLUE 75 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 73398-25-1

CAS 73398-25-1PubChem CID 44153362

Basic Blue 75

IUPAC name: (7-anilinophenoxazin-3-ylidene)-diethylazanium;trichlorozinc(1-)

Molecular formula: C22H22Cl3N3OZn
Molecular weight: 516.2 g/mol
Exact mass: 513.011987 Da
Topological polar surface area: 36.6 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 4
Covalent units: 2
Defined stereocentres: 0

Also known as

EINECS 277-426-0H84HHH838RAHC BLUE SPPhenoxazin-5-ium, 3-(diethylamino)-7-(phenylamino)-, trichlorozincate(1-)PHENOXAZIN-5-IUM, 3-(DIETHYLAMINO)-7-(PHENYLAMINO)-, TRICHLOROZINCATE(1-) (1:1)ZINCATE(1-), TRICHLORO-, 3-(DIETHYLAMINO)-7-(PHENYLAMINO)PHENOXAZIN-5-IUMRefChem:561079BASIC BLUE 75 [INCI]

2 more reported names

UNII-H84HHH838R3-(Diethylamino)-7-(phenylamino)phenoxazin-5-ium trichlorozincate

Open full PubChem record PubChem annotations 3D structure image

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 BASIC BLUE 75

INCI name

BASIC BLUE 75

Description

Phenoxazin-5-ium, 3-(diethylamino)-7-(phenylamino)-, trichlorozincate (1-)

Record provenance

Inventory reference: 86386
Imported identity: BASIC BLUE 75
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for BASIC BLUE 75

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Key data

CAS

73398-25-1

277-426-0

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.

#3077 · BASIC BLUE 75

Ingredients with overlapping formulation functions

BASIC BLUE 41HAIR DYEING

BASIC BLUE 47HAIR DYEING

BASIC BLUE 6HAIR DYEING

BASIC BLUE 7HAIR DYEING

BASIC BLUE 9HAIR DYEING

BASIC BLUE 99HAIR CONDITIONING, HAIR DYEING

BASIC BROWN 16HAIR DYEING

BASIC BROWN 17HAIR 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 BASIC BLUE 75 appears in the CosIng inventory

The CosIng inventory lists BASIC BLUE 75 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.

BASIC BLUE 75 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

BASIC BLUE 75 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, BASIC BLUE 75 carries the following function designation(s):

HAIR DYEING

CAS 73398-25-1 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 BASIC BLUE 75

This page reproduces the CosIng inventory entry for BASIC BLUE 75 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 BASIC BLUE 75 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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