Moderate Cosmetic Ingredient NOAEL Data Sensitization Data

5-Amino-6-Chloro-o-Cresol

INCI: 5-AMINO-6-CHLORO-O-CRESOL

CAS Number
84540-50-1
Function
Hair colorant (oxidative and semi-permanent hair dyes)
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes CIR previously concluded safe (2004) for oxidative and semi-permanent hair dyes as part of a 6-ingredient amino-cresol assessment; re-review pending as individual report

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

3 study endpoints found for 5-Amino-6-Chloro-o-Cresol. 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 100 mg/kg bw/day oral rat Subchronic COSMOS_DB
NOAEL 100 mg/kg bw/day oral rat oral REACH
NOAEL 750 mg/kg bw/day oral rat oral REACH

Sensitization Profile

Contact sensitization data for 5-Amino-6-Chloro-o-Cresol 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: SCCS; IVDK

Expert Verdict

Several related amino-cresols have been banned in EU, triggering re-review of this ingredient despite current permitted status.

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Concern Level: Moderate

Regulatory Flags

colorant

Frequently Asked Questions

Is 5-Amino-6-Chloro-o-Cresol safe in cosmetics?

Several related amino-cresols have been banned in EU, triggering re-review of this ingredient despite current permitted status. The EU classifies 5-Amino-6-Chloro-o-Cresol as "permitted". Safety rating: MODERATE. 3 toxicological study endpoint(s) are available in our database.

Is 5-Amino-6-Chloro-o-Cresol allowed in the EU?

5-Amino-6-Chloro-o-Cresol EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does 5-Amino-6-Chloro-o-Cresol do in cosmetics?

5-Amino-6-Chloro-o-Cresol functions as: Hair colorant (oxidative and semi-permanent hair dyes). It is classified as a cosmetic ingredient in our database. CAS number: 84540-50-1.

What is the Margin of Safety for 5-Amino-6-Chloro-o-Cresol?

not established 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 5-Amino-6-Chloro-o-Cresol?

The NOAEL (No Observed Adverse Effect Level) for 5-Amino-6-Chloro-o-Cresol is 100 mg/kg bw/day based on a Subchronic study via oral route in rat. A total of 3 study endpoints are available. Source: COSMOS_DB.

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