What other records share CAS 6706-82-7?

CAS 6706-82-7 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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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 3274214/08/2020

CI 21230

Q: What does the restriction note for CI 21230 mean?

The restriction field for CI 21230 reads: IV/49 (CI 21230) II/1352 (Solvent Yellow 29; CI 21230: when used as a substance in hair dye products). This is the restriction note from the CosIng inventory. For authoritative conditions and limits, always refer to the linked annex entries.

2,2'-[Cyclohexylidenebis[(2-methyl-4,1-phenylene)azo]]bis[4-cyclohexylphenol]

CI 21230 is linked to 2 EU annex records on this page. Inventory note: IV/49 (CI 21230) II/1352 (Solvent Yellow 29; CI 21230: when used as a substance in hair dye products).

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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	2	English and EU languages
Great Britain	Source mapped Official source mapped; ingredient rule not imported	0	English
Canada	Source mapped Official source mapped; ingredient rule not imported	0	English and French
New Zealand	Source mapped Official source mapped; ingredient rule not imported	0	English
ASEAN	Source mapped Official source mapped; ingredient rule not imported	0	English and national languages
China	Source mapped Official source mapped; ingredient rule not imported	0	Chinese with selected English material
Japan	Source mapped Official source mapped; ingredient rule not imported	0	Japanese; official English translation available
South Korea	Source mapped Official source mapped; ingredient rule not imported	0	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	Source mapped Official source mapped; ingredient rule not imported	0	English and Hindi
Saudi Arabia	Source mapped Official source mapped; ingredient rule not imported	0	Arabic and English

Chemical identity and properties

PubChem 2D chemical structure for CAS 6706-82-7

CAS 6706-82-7PubChem CID 81200

2,2'-(Cyclohexylidenebis((2-methyl-4,1-phenylene)azo))bis(4-cyclohexylphenol)

IUPAC name: 4-cyclohexyl-2-[[4-[1-[4-[(5-cyclohexyl-2-hydroxyphenyl)diazenyl]-3-methylphenyl]cyclohexyl]-2-methylphenyl]diazenyl]phenol

Molecular formula: C44H52N4O2
Molecular weight: 668.9 g/mol
Exact mass: 668.40902691 Da
XLogP3: 14.8
Topological polar surface area: 89.9 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 6
Covalent units: 1
Defined stereocentres: 0

Also known as

2,2'-[cyclohexylidenebis[(2-methyl-4,1-phenylene)azo]]bis[4-cyclohexylphenol]RefChem:440149Solvent yellow 29C.I. Solvent Yellow 29CI 21230944C4896N7Phenol, 2,2'-(cyclohexylidenebis((2-methyl-4,1-phenylene)azo))bis(4-cyclohexyl-Phenol, 2,2'-(cyclohexylidenebis((2-methyl-4,1-phenylene)-2,1-diazenediyl))bis(4-cyclohexyl-

13 more reported names

Phenol, 2,2'-[cyclohexylidenebis[(2-methyl-4,1-phenylene)azo]]bis[4-cyclohexyl-CERES YELLOW GRNSUDAN YELLOW GRNUNII-944C4896N7EINECS 229-754-0ORIENT YELLOW 129CI SOLVENT YELLOW 29QMPUCZGGNKXEQF-UHFFFAOYSA-NC.I. 212302,2'-(Cyclohexylidenebis((2-methyl-4,1-phenylene)azo))bis(4-cyclo- hexylphenol)Phenol, 2,2'-(cyclohexylidenebis((2-methyl-4,1-phenylene)azo))bis(4-cyclo- hexyl-2,2'-[(1~3~,3~3~-Dimethyl-2~3~,2~4~,2~5~,2~6~-tetrahydro-2~2~H-[1~1~,2~1~:2~1~,3~1~-terphenyl]-1~4~,3~4~-diyl)bis(diazene-2,1-diyl)]bis(4-cyclohexylphenol)2,2'-{(1~3~,3~3~-Dimethyl-2~3~,2~4~,2~5~,2~6~-tetrahydro-2~2~H-[1~1~,2~1~:2~1~,3~1~-terphenyl]-1~4~,3~4~-diyl)bis[(E)-diazene-2,1-diyl]}bis(4-cyclohexylphenol)

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID00863930
EPA DTXSID:DTXSID50879809

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for CI 21230

INCI name

CI 21230

Description

2,2'-[Cyclohexylidenebis[(2-methyl-4,1-phenylene)azo]]bis[4-cyclohexylphenol]

Record provenance

Inventory reference: 32742
Imported identity: CI 21230
Source update: 14/08/2020

European Commission CosIng source notes

Annex records for CI 21230

Annex II Restriction reference

Entry 1352

2,2'-[Cyclohexylidenebis[(2-methyl-4,1-phenylene)azo]]bis[4-cyclohexylphenol] (Solvent Yellow 29; C…

CAS: 6706-82-7

EC: 229-754-0

Annex IV Restriction reference

Entry 49

CI 21230 /SOLVENT YELLOW 29

CAS: 6706-82-7

EC: 229-754-0

Key data

CAS

6706-82-7

229-754-0

Restriction

IV/49 (CI 21230) II/1352 (Solvent Yellow 29; CI 21230: when used as a substance in hair dye products)

Function

COLORANT: Exclusively or mainly intended to colour the cosmetic product, the body as a whole or certain parts thereof, by absorption or reflection of visible light. All authorised colorants are substances in the positive list of Annex IV to the Cosmetics Regulation 1223/2009.

Official EU ingredient-name evidence

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

#6386 · CI 21230

Records sharing a CAS or EC identity

SOLVENT YELLOW 29

Ingredients with overlapping formulation functions

CI 20170COLORANT, HAIR DYEING

CI 27290COLORANT, HAIR DYEING

CI 27755COLORANT

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 CI 21230 appears in the CosIng inventory

The CosIng inventory lists CI 21230 as a cosmetic ingredient and this page links it to 2 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.

CI 21230 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

CI 21230 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 CI 21230 reads: "IV/49 (CI 21230) II/1352 (Solvent Yellow 29; CI 21230: when used as a substance in hair dye products)". 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, CI 21230 carries the following function designation(s):

COLORANT

CAS 6706-82-7 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 CI 21230

This page combines the CosIng inventory entry for CI 21230 with 2 linked Annex II–VI records from the local dataset built from public European Commission cosmetic ingredient materials.

Use this inventory page to research CI 21230 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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