What does the restriction note for ACID YELLOW 36 mean?

The restriction field for ACID YELLOW 36 reads: II/387. This is the restriction note from the CosIng inventory. For authoritative conditions and limits, always refer to the linked annex entries.

What other records share CAS 587-98-4?

CAS 587-98-4 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 ACID YELLOW 36?

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 5416315/10/2010

ACID YELLOW 36

Sodium 3-(p-anilinophenylazo)benzenesulphonate

ACID YELLOW 36 is linked to 1 EU annex record on this page. Inventory note: II/387.

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Regulatory evidence by market

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Market	Evidence status	Records	Source language
European Union	Evidence linked Prohibited entry found Open this evidence	1	English and EU languages
Great Britain	Evidence linked Prohibited Open this evidence	1	English
Canada	Evidence linked Prohibited Open this evidence	1	English and French
New Zealand	Evidence linked Prohibited Open this evidence	1	English
ASEAN	Evidence linked Prohibited Open this evidence	1	English and national languages
China	Evidence linked Prohibited Open this evidence	1	Chinese with selected English material
Japan	Source mapped Official source mapped; ingredient rule not imported	0	Japanese; official English translation available
South Korea	Evidence linked Prohibited Open this evidence	1	Korean with some English names
United States	Source mapped Official source mapped; ingredient rule not imported	0	English
Australia	Source mapped Official source mapped; ingredient rule not imported	0	English
Brazil	Evidence linked Prohibited Open this evidence	1	Portuguese with INCI crosswalks
India	Evidence linked Prohibited Open this evidence	1	English and Hindi
Saudi Arabia	Evidence linked Prohibited Open this evidence	1	Arabic and English

Chemical identity and properties

PubChem 2D chemical structure for CAS 587-98-4

CAS 587-98-4PubChem CID 3935589

Metanil yellow

Metanil yellow is an organic sodium salt having 3-[(4-anilinophenyl)diazenyl]benzene-1-sulfonate as the counterion. Used in one variant of Masson's trichrome to stain collagen yellow in contrast to the red muscle, but is not in common used. It has a role as a histological dye. It contains a 3-[(4-anilinophenyl)diazenyl]benzene-1-sulfonate. — ChEBI

IUPAC name: sodium 3-[(4-anilinophenyl)diazenyl]benzenesulfonate

Molecular formula: C18H14N3NaO3S
Molecular weight: 375.4 g/mol
Exact mass: 375.06535677 Da
Topological polar surface area: 102.0 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 6
Covalent units: 2
Defined stereocentres: 0

Also known as

ACID YELLOW 36C.I. Acid Yellow 36Acid Metanil YellowAmacid Yellow MFenazo Yellow MKiton Yellow MSMetanil Yellow CMetanil Yellow E

16 more reported names

Metanil Yellow FMetanil Yellow GMetanil Yellow KMetanil Yellow OMetanil Yellow SMetanil Yellow YMetanile Yellow OC.I. Acid Yellow 36, monosodium saltKiton Orange MNOMetanil Yellow PLMetanil Yellow VSMetanil Yellow WSMetanil Yellow YKTertracid Yellow MHispacid Yellow MGAizen Metanil Yellow

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:87235
EPA DTXSID:DTXSID5041722

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 ACID YELLOW 36

INCI name

ACID YELLOW 36

Description

Sodium 3-(p-anilinophenylazo)benzenesulphonate

Record provenance

Inventory reference: 54163
Imported identity: ACID YELLOW 36
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for ACID YELLOW 36

Annex II Restriction reference

Entry 387

Colouring agent CI 13065

CAS: 587-98-4

EC: 209-608-2

Key data

CAS

587-98-4

209-608-2

Restriction

II/387

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.

#883 · ACID YELLOW 36

Ingredients with overlapping formulation functions

ACID VIOLET 9HAIR DYEING

ACID YELLOW 1HAIR DYEING

ACID YELLOW 23HAIR DYEING

ACID YELLOW 23 ALUMINUM LAKEHAIR DYEING

ACID YELLOW 73COLORANT, HAIR DYEING

ACID YELLOW 73 SODIUM SALTHAIR DYEING

BASIC BLUE 124HAIR DYEING

BASIC BLUE 26HAIR 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 ACID YELLOW 36 appears in the CosIng inventory

The CosIng inventory lists ACID YELLOW 36 as a cosmetic ingredient and this page links it to 1 annex record. The inventory entry captures names and identifiers, while the annex record shows where the substance is prohibited, restricted or positively listed in EU cosmetics law.

ACID YELLOW 36 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

ACID YELLOW 36 appears in the EU CosIng inventory and has linked annex records. Check the annex records above for applicable restrictions, concentration limits and conditions of use. Annex II listing means prohibited; Annex III means restricted; Annexes IV, V and VI mean permitted under specified conditions.

The restriction field for ACID YELLOW 36 reads: "II/387". This is the restriction note recorded in the CosIng inventory for this ingredient. For authoritative conditions and limits, always refer to the linked annex entries above.

According to the EU CosIng inventory, ACID YELLOW 36 carries the following function designation(s):

HAIR DYEING

CAS 587-98-4 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 ACID YELLOW 36

This page combines the CosIng inventory entry for ACID YELLOW 36 with 1 linked Annex II–VI record from the local dataset built from public European Commission cosmetic ingredient materials.

Use this inventory page to research ACID YELLOW 36 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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