Good Cosmetic Ingredient NOAEL Data

4-Hydroxypropylamino-3-Nitrophenol

INCI: 4-HYDROXYPROPYLAMINO-3-NITROPHENOL

CAS Number
92952-81-3
Function
Hair dyeing (oxidative and semi-permanent)
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted for use in hair dye formulations under the coal-tar exemption

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

1 study endpoint found for 4-Hydroxypropylamino-3-Nitrophenol. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.

Endpoint Value Route Species Study Type Source
LOAEL 10 mg/kg bw/day oral rat Subchronic COSMOS_DB

Expert Verdict

Nitro-aromatic compound prohibited in EU; must comply with purity criteria and display mandatory hair dye warnings on label in permitted jurisdictions.

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Concern Level: Low

Regulatory Flags

eu_cosing_listed

Frequently Asked Questions

Is 4-Hydroxypropylamino-3-Nitrophenol safe in cosmetics?

Nitro-aromatic compound prohibited in EU; must comply with purity criteria and display mandatory hair dye warnings on label in permitted jurisdictions. The EU classifies 4-Hydroxypropylamino-3-Nitrophenol as "prohibited". Safety rating: GOOD. 1 toxicological study endpoint(s) are available in our database.

Is 4-Hydroxypropylamino-3-Nitrophenol allowed in the EU?

4-Hydroxypropylamino-3-Nitrophenol EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does 4-Hydroxypropylamino-3-Nitrophenol do in cosmetics?

4-Hydroxypropylamino-3-Nitrophenol functions as: Hair dyeing (oxidative and semi-permanent). It is classified as a cosmetic ingredient in our database. CAS number: 92952-81-3.

What is the Margin of Safety for 4-Hydroxypropylamino-3-Nitrophenol?

adequate The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

What is the NOAEL for 4-Hydroxypropylamino-3-Nitrophenol?

The NOAEL (No Observed Adverse Effect Level) for 4-Hydroxypropylamino-3-Nitrophenol is 10 mg/kg bw/day based on a Subchronic study via oral route in rat. Source: COSMOS_DB.

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