Fragrance avoidance
Nothing to weigh for this context yet.
We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.
- beauty
Hc yellow no. 18
CAS 1916-59-2
Also registered as 1 other CAS number
2954863-96-6
Concern score
Not assessed — no hazard data yet.
Hc yellow no. 18 in plain language
Also known as 2-Aminophenoxazin-3-One · 3-Aminophenoxazone · Questiomycin a · 2-Amino-3H-phenoxazin-3-one · AV Toxin C · Acrospermumviticola toxin C
Show all 16 names
Isophenoxazine · 2-Amino-3-phenoxazone · 2-Aminophenoxazon · 2-Aminophenoxazone · 2-amino-phenoxazin-3-one · 2-aminophenoxazine-3-one · 3H-Phenoxazin-3-one, 2-amino- · MLS000736964 · Phx-3 cpd · Questinomycine A
Used in cosmetics as a colourant. HC Yellow No. 18 is the hair color.
- Colorant
- We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.
What we know about this ingredient
EPA DSSTox provides the canonical identifier, structure, and synonym profile for this chemical.
Regulation
No restrictions found. Hc yellow no. 18 appears in these published regulatory listings.
EUCosIngActiveHC Yellow No. 18 is the hair color that conforms to the formula:
- HC Yellow No. 18 is the hair color that conforms to the formula:Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →
Expert safety opinions
No expert opinion on file for Hc yellow no. 18. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.
SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.
Evidence & sources
No graded research studies for Hc yellow no. 18 yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
No signal in this context