SOLVENT BLACK 3
2,3-dihydro-2,2-dimethyl-6-[[1-naphthyl-4-(phenylazo)]azo]-1H-perimidine (CI 26150)
SOLVENT BLACK 3 is linked to 1 EU annex record on this page. Inventory note: II/1265.
Regulatory evidence by market
This matrix separates verified ingredient rules from sources that are mapped but not yet imported. No imported rule does not mean the ingredient is permitted.
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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 | Source mapped Official source mapped; ingredient rule not imported | 0 | English and French |
| New Zealand | Evidence linked Prohibited Open this evidence | 1 | English |
| ASEAN | Source mapped Official source mapped; ingredient rule not imported | 0 | 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
Sudan Black B
Sudan black B is a member of the class of perimidines that is 2,2-dimethyl-2,3-dihydro-1H-perimidine carrying a [4-(phenyldiazenyl)naphthalen-1-yl]diazenyl substituent at position 6. A fat-soluble dye predominantly used for demonstrating triglycerides in frozen sections and for staining of protein bound lipids in paraffin sections. It has a role as a histological dye. It is a member of azobenzenes, a member of perimidines and a bis(azo) compound. — ChEBI
- IUPAC name
- (2,2-dimethyl-1,3-dihydroperimidin-6-yl)-(4-phenyldiazenylnaphthalen-1-yl)diazene
- Molecular formula
- C29H24N6
- Molecular weight
- 456.5 g/mol
- Exact mass
- 456.20624479 Da
- XLogP3
- 8.4
- Topological polar surface area
- 73.5 Ų
- Hydrogen-bond donors
- 2
- Hydrogen-bond acceptors
- 6
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
16 more reported names
External database identifiers
- ChEBI:CHEBI:88216
- ChEMBL:CHEMBL1872445
- EPA DTXSID:DTXSID0052091
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 SOLVENT BLACK 3
INCI name
SOLVENT BLACK 3
Description
2,3-dihydro-2,2-dimethyl-6-[[1-naphthyl-4-(phenylazo)]azo]-1H-perimidine (CI 26150)
Record provenance
- Inventory reference
- 38148
- Imported identity
- SOLVENT BLACK 3
- Source update
- 15/10/2010
Annex records for SOLVENT BLACK 3
2,3-Dihydro-2,2-dimethyl-6-[(4-(phenylazo)-1-naphthelenyl)azo]-1H-pyrimidine (Solvent Black 3) and …
Key data
- 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.
Related inventory evidence
Ingredients with overlapping formulation functions
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
How SOLVENT BLACK 3 appears in the CosIng inventory
The CosIng inventory lists SOLVENT BLACK 3 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.
SOLVENT BLACK 3 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
Source note for SOLVENT BLACK 3
This page combines the CosIng inventory entry for SOLVENT BLACK 3 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 SOLVENT BLACK 3 and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.
Tools & next steps
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