Methylrosanilinium Chloride

INCI: METHYLROSANILINIUM CHLORIDE

CAS Number
548-62-9
Function
Hair dyeing - a triphenylmethane dye that adheres to the hair surface and lasts 1-2 washes (temporary/semi-permanent coloring)
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Crystal violet is not an FDA-approved color additive for cosmetics. In the US, it is primarily used as a topical antiseptic (OTC drug context), and its use as a cosmetic colorant would require color additive approval, which it does not have

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.

Expert Verdict

RTECS data flags mutation data, reproductive effects, skin/eye irritation, and tumor data. It has known antibacterial, antifungal, and anthelmintic properties but carries carcinogenicity concerns that limit its cosmetic application. Deep violet dye with strong staining; historically used as a topical anti-infective agent (gentian violet)

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Concern Level: High

Regulatory Flags

prop65 eu_banned_cosmetics eu_cosing_listed

Frequently Asked Questions

Is Methylrosanilinium Chloride safe in cosmetics?

RTECS data flags mutation data, reproductive effects, skin/eye irritation, and tumor data. It has known antibacterial, antifungal, and anthelmintic properties but carries carcinogenicity concerns that limit its cosmetic application. Deep violet dye with strong staining; historically used as a topical anti-infective agent (gentian violet) The EU classifies Methylrosanilinium Chloride as "prohibited". Safety rating: MODERATE.

Is Methylrosanilinium Chloride allowed in the EU?

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

What does Methylrosanilinium Chloride do in cosmetics?

Methylrosanilinium Chloride functions as: Hair dyeing - a triphenylmethane dye that adheres to the hair surface and lasts 1-2 washes (temporary/semi-permanent coloring). It is classified as a cosmetic ingredient in our database. CAS number: 548-62-9.

What is the Margin of Safety for Methylrosanilinium Chloride?

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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