Pyrocatechol

INCI: PYROCATECHOL (CATECHOL) [^1_3]

CAS Number
120-80-9 [^1_3]
Function
Hair Dyeing agent (historical); Antioxidant [^1_3]
Safety Rating
POOR

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status prohibited
US Notes Not specifically banned by FDA; however, no current VCRP-reported uses; CIR has not issued a separate final safety assessment

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

๐Ÿšซ EU-banned. Classified as CMR substance. Skin and eye irritant. Mutagenic in bacterial assays. Suspected endocrine disruptor. Do NOT formulate with this ingredient. [^1_3][^1_5]

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Concern Level: High

Frequently Asked Questions

Is Pyrocatechol safe in cosmetics?

๐Ÿšซ EU-banned. Classified as CMR substance. Skin and eye irritant. Mutagenic in bacterial assays. Suspected endocrine disruptor. Do NOT formulate with this ingredient. [^1_3][^1_5] The EU classifies Pyrocatechol as "prohibited". Safety rating: POOR.

Is Pyrocatechol allowed in the EU?

Pyrocatechol EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Pyrocatechol do in cosmetics?

Pyrocatechol functions as: Hair Dyeing agent (historical); Antioxidant [^1_3]. It is classified as a cosmetic ingredient in our database. CAS number: 120-80-9 [^1_3].

What is the Margin of Safety for Pyrocatechol?

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.

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