ACID RED 18 ALUMINUM LAKE
Aluminium, 7-hydroxy-8-[(4-sulfo-1-naphthalenyl)azo]-1,3-naphthalenedisulfonic acid complex (CI 16255:1)
ACID RED 18 ALUMINUM LAKE is linked to 2 EU annex records on this page. Inventory note: III/192 (Acid Red 18; Acid Red 18 Aluminum Lake) IV/35 (CI 16255).
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.
Swipe or scroll horizontally to see every column.
| Market | Evidence status | Records | Source language |
|---|---|---|---|
| European Union | Evidence linked Restricted entry found Open this evidence | 2 | English and EU languages |
| Great Britain | Evidence linked Restricted Open this evidence | 1 | English |
| Canada | Source mapped Official source mapped; ingredient rule not imported | 0 | English and French |
| New Zealand | Evidence linked Restricted Open this evidence | 1 | English |
| ASEAN | Evidence linked Restricted Open this evidence | 1 | 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 | Source mapped Official source mapped; ingredient rule not imported | 0 | Portuguese with INCI crosswalks |
| India | Evidence linked Restricted Open this evidence | 1 | English and Hindi |
| Saudi Arabia | Evidence linked Restricted Open this evidence | 1 | Arabic and English |
Chemical identity and properties
Ponceau 4R aluminum
- IUPAC name
- aluminum 7-hydroxy-8-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-1,3-disulfonate
- Molecular formula
- C20H11AlN2O10S3
- Molecular weight
- 562.5 g/mol
- Exact mass
- 561.9391215 Da
- Topological polar surface area
- 242.0 Ų
- Hydrogen-bond donors
- 1
- Hydrogen-bond acceptors
- 12
- Covalent units
- 2
- Defined stereocentres
- 0
Also known as
5 more reported names
Evidence from additional scientific databases
NIH PubChem PUG-View
Attributed physical-property, hazard, environmental and use annotations.
- Note: This chemical does not meet GHS hazard criteria for 100% (5 of 5) of all reports. Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: Not Classified; Reported as not meeting GHS hazard criteria by 5 of 5 companies. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: Aggregated GHS information provided per 5 reports by companies from 1 notifications to the ECHA C&L Inventory.; Reported as not meeting GHS hazard criteria per 5 of 5 reports by companies.; There are 0 notifications provided by 0 of 5 reports by companies with hazard statement code(s).; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record
Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.
Additional source coverage and match status
| Source | Result | Checked |
|---|---|---|
| NIH PubChem PUG-View | Exact match | 2026-08-31 |
A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.
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 ACID RED 18 ALUMINUM LAKE
INCI name
ACID RED 18 ALUMINUM LAKE
Description
Aluminium, 7-hydroxy-8-[(4-sulfo-1-naphthalenyl)azo]-1,3-naphthalenedisulfonic acid complex (CI 16255:1)
Record provenance
- Inventory reference
- 31624
- Imported identity
- ACID RED 18 ALUMINUM LAKE
- Source update
- 13/08/2020
Annex records for ACID RED 18 ALUMINUM LAKE
ACID RED 18
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 ACID RED 18 ALUMINUM LAKE appears in the CosIng inventory
The CosIng inventory lists ACID RED 18 ALUMINUM LAKE 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.
ACID RED 18 ALUMINUM LAKE 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 ACID RED 18 ALUMINUM LAKE
This page combines the CosIng inventory entry for ACID RED 18 ALUMINUM LAKE 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 ACID RED 18 ALUMINUM LAKE 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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