Moderate Cosmetic Ingredient NOAEL Data SCCS/CIR Reviewed Sensitization Data

2-Amino-6-Chloro-4-Nitrophenol

INCI: 2-AMINO-6-CHLORO-4-NITROPHENOL

CAS Number
6358-09-4
Function
Hair dyeing (semi-permanent and oxidative)
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
EU Max Conc. 2.0%
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes CIR concluded safe at concentrations up to 2.0% in hair dye formulations

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

2 study endpoints found for 2-Amino-6-Chloro-4-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 Developmental COSMOS_DB
NOAEL ca.30 mg/kg bw/day oral rat oral REACH

Safety Opinions

Official safety assessments from the Scientific Committee on Consumer Safety (SCCS) and Cosmetic Ingredient Review (CIR).

cir
Verdict: unknown
NOAEL: 30 mg/kg (dermal)
cir
Verdict: unknown
NOAEL: 30 mg/kg (oral)

Sensitization Profile

Contact sensitization data for 2-Amino-6-Chloro-4-Nitrophenol based on clinical patch test studies and IFRA standards.

Sensitization Rate
low
Allergen Class
dye
EU Allergen Listed
no
Patch Test Positive Rate
0.2%
Cross-reactivity Group
para-amino-group
Reaction Type
contact-dermatitis

Source: IVDK; NACDG; ESSCA

Expert Verdict

CLP hazards: H315 (skin irritant Cat 2), H317 (skin sensitiser Cat 1A), H319 (eye irritant Cat 2). Mandatory patch test warning on label. The CIR Panel reaffirmed safety in 2012 but noted no basis for changing consumer patch-test advice.

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Concern Level: High

Regulatory Flags

eu_cosing_listed

Frequently Asked Questions

Is 2-Amino-6-Chloro-4-Nitrophenol safe in cosmetics?

CLP hazards: H315 (skin irritant Cat 2), H317 (skin sensitiser Cat 1A), H319 (eye irritant Cat 2). Mandatory patch test warning on label. The CIR Panel reaffirmed safety in 2012 but noted no basis for changing consumer patch-test advice. The EU classifies 2-Amino-6-Chloro-4-Nitrophenol as "prohibited". Safety rating: MODERATE. 2 toxicological study endpoint(s) are available in our database. This ingredient has been reviewed by cir.

Is 2-Amino-6-Chloro-4-Nitrophenol allowed in the EU?

2-Amino-6-Chloro-4-Nitrophenol EU regulatory status: prohibited. Maximum allowed concentration: 2.0%. This is based on EU Regulation 1223/2009 and its amendments.

What does 2-Amino-6-Chloro-4-Nitrophenol do in cosmetics?

2-Amino-6-Chloro-4-Nitrophenol functions as: Hair dyeing (semi-permanent and oxidative). It is classified as a cosmetic ingredient in our database. CAS number: 6358-09-4.

What is the Margin of Safety for 2-Amino-6-Chloro-4-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 2-Amino-6-Chloro-4-Nitrophenol?

The NOAEL (No Observed Adverse Effect Level) for 2-Amino-6-Chloro-4-Nitrophenol is 10 mg/kg bw/day based on a Developmental study via oral route in rat. A total of 2 study endpoints are available. Source: COSMOS_DB.

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