Official EU label nameGlossary entry 27211
SOLVENT RED 23
This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.
Global evidence snapshot
The resolved identity has matching regulatory evidence in 1 of 13 indexed market datasets: 1 country records and 0 EU Annex records. Every result and evidence gap is listed below.
Markets checked
13
Markets with evidence
1
Evidence gaps
12
Resolved identifiers
2
Resolved substance identity
CAS:85-86-9
EC:201-638-4
Ingredient index records:
SOLVENT RED 23
Cosmetic functions: HAIR DYEING
1-(4-(Phenylazo)phenylazo)-2-naphthol (CI 26100)
Inventory restriction note: II/1353 (Solvent Red 23; CI 26100: when used as a substance in hair dye products)
2 matched or reported names
SOLVENT RED 23Solvent Red 23
Regulatory evidence in all 13 markets
Open each matched record for its scope, concentration, conditions, warnings and official source version.
Swipe or scroll horizontally to see dataset coverage and next actions.
| Market | Result | Records | Dataset | Meaning / next action |
|---|---|---|---|---|
| European Union EU | No local match | 0 | Complete annex dataset Regulation (EC) 1223/2009 consolidated to 1 May 2026 | No annex match only means that these five annexes did not return a match; CosIng identity data and other EU obligations still need review. |
| Great Britain GB | No local match | 0 | Complete consolidated annex dataset GB retained Regulation 1223/2009 schedules, effective 15 August 2026 | No annex match is not approval and does not cover Northern Ireland, which follows the applicable EU framework. |
| Canada CA | Restricted | 1Open record 1 | Complete Hotlist snapshot Health Canada Cosmetic Ingredient Hotlist, 13 August 2025 | Review every linked record and exact conditions. |
| New Zealand NZ | No local match | 0 | Complete schedules dataset Cosmetic Products Group Standard schedules effective 1 January 2026 | The searchable spreadsheet is an aid; the legal Group Standard and incorporated notices remain authoritative. |
| ASEAN ASEAN | No local match | 0 | Complete regional annex dataset ASEAN Cosmetic Directive annexes 2026-1, 22 June 2026 | Regional annex coverage does not replace member-state implementation dates, notifications or national deviations. |
| China CN | No local match | 0 | Complete prohibited catalogues plus official-source workflow NMPA 2021 banned catalogues plus dynamic IECIC List I/List II system current since 2025 | IECIC listing is not blanket approval; absence may require the new cosmetic ingredient route, and restrictions are checked separately. |
| Japan JP | No local match | 0 | Complete Standards appendices dataset MHLW Standards for Cosmetics official English source and Japanese amendments checked for the imported snapshot | The Japanese text and subsequent notices are canonical; no local match is not a product-compliance conclusion. |
| South Korea KR | No local match | 0 | Complete current appendix dataset MFDS Notice 2026-19, effective 18 March 2026 | Korean source wording is canonical and other positive lists/notices may still apply to the formulation. |
| United States US | No local match | 0 | Complete enumerated federal ingredient rules eCFR Title 21 issue date 27 August 2026 | FDA has no general approved-cosmetic-ingredient catalogue; absence from these sections is not approval or proof of safety. |
| Australia AU | No local match | 0 | Complete cosmetic-relevant Poisons Standard subset plus official workflow Therapeutic Goods (Poisons Standard—June 2026) Instrument 2026 | An AICIS Inventory match is not cosmetic approval; no Inventory match can indicate a new, exempted, reported or confidential introduction. |
| Brazil BR | No local match | 0 | Complete prohibited dataset plus current restricted-list workflow ANVISA RDC 1.029/2026 and RDC 1.030/2026, published 15 June 2026 | RDC 1.030/2026 amends rather than replaces the prohibited baseline, and the second restricted-list revision was still under consultation in July 2026. |
| India IN | No local match | 0 | Complete current Part 2 dataset plus official workflow for Parts 1, 3 and 4 Cosmetics Rules 2020 plus current BIS IS 4707 parts (1:2020, 2:2025, 3:2025, 4:2022) | The standards are separate controlled publications; absence from a locally indexed excerpt is not permission. |
| Saudi Arabia SA | No local match | 0 | Complete official list index SFDA live prohibited/restricted lists, snapshot 30 August 2026 | No list match is not permission; Gulf/SFDA product, claim, notification and technical requirements still apply. |
No market rows match this filter.
Matching market records and conditions
Chemical identity and properties
CAS 85-86-9PubChem CID 62331
1-(p-Phenylazophenylazo)-2-naphthol (Sudan III)
Sudan III is a bis(azo) compound that is 2-naphthol substituted at position 1 by a 4-{[(2-methylphenyl)diazenyl]phenyl}diazenyl group. A fat-soluble dye predominantly used for demonstrating triglycerides in frozen sections, but which may also stain some protein bound lipids in paraffin sections. It has a role as a carcinogenic agent, a fluorochrome and a histological dye. It is a member of azobenzenes, a member of naphthols and a bis(azo) compound. It is functionally related to a 2-naphthol. — ChEBI
- IUPAC name
- 1-[(4-phenyldiazenylphenyl)diazenyl]naphthalen-2-ol
- Molecular formula
- C22H16N4O
- Molecular weight
- 352.4 g/mol
- Exact mass
- 352.13241115 Da
- XLogP3
- 5.9
- Topological polar surface area
- 69.7 Ų
- Hydrogen-bond donors
- 1
- Hydrogen-bond acceptors
- 5
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
Sudan IIISolvent red 23C.I. Solvent Red 23Toney RedFettponceau GCerasin RedFat Scarlet LBFettscharlach
16 more reported names
CerasinrotFettrotSudan Red IIIRouge cerasineStearix ScarletPyronalrot BSudan P IIIFettscharlach LBOrganol Red BSSoudan IIICerotinscharlach RSomalia Red IIIMotirot 2RSudan Red BKFat Red RFat Red HRR
External database identifiers
- ChEBI:CHEBI:82535
- ChEMBL:CHEMBL2001927
- EPA DTXSID:DTXSID3041742
- PubMed:39703340
- PubMed:37813177
- PubMed:22287322
- PubMed:20308224
- PubMed:18418879
- PubMed:17598027
- PubMed:15822858
- PubMed:15788368
- PubMed:15585952
- PubMed:1282215
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Additional authoritative substance research
Each link searches that source for this identity. A link is a research route, not a claim that the source holds an exact record. What each source is, and its legal weight
Take this record further
Official source and scope
Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.
Open official Decision