Methylimidazoliumpropyl p-Phenylenediamine HCl
INCI: METHYLIMIDAZOLIUMPROPYL P-PHENYLENEDIAMINE HCL (DESIGNATION A166)
Regulatory Status
For full compliance data across 55 jurisdictions, use the Substance Compliance tool.
Safety Data
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Strong skin sensitiser per SCCS Opinion SCCS/1609/19; the SCCS nonetheless concluded it is safe at ≤2% on-head in oxidative formulations; mandatory warning statements and "not intended for dyeing eyelashes or eyebrows" labeling required in the EU. Modified p-phenylenediamine derivative bearing an imidazolium-propyl side chain; the salt form is chloride dihydrochloride; designed as a coupling/primary intermediate for oxidative color development
Frequently Asked Questions
Is Methylimidazoliumpropyl p-Phenylenediamine HCl safe in cosmetics?
Strong skin sensitiser per SCCS Opinion SCCS/1609/19; the SCCS nonetheless concluded it is safe at ≤2% on-head in oxidative formulations; mandatory warning statements and "not intended for dyeing eyelashes or eyebrows" labeling required in the EU. Modified p-phenylenediamine derivative bearing an imidazolium-propyl side chain; the salt form is chloride dihydrochloride; designed as a coupling/primary intermediate for oxidative color development The EU classifies Methylimidazoliumpropyl p-Phenylenediamine HCl as "restricted". Safety rating: MODERATE.
Is Methylimidazoliumpropyl p-Phenylenediamine HCl allowed in the EU?
Methylimidazoliumpropyl p-Phenylenediamine HCl EU regulatory status: restricted. Maximum allowed concentration: 2%. This is based on EU Regulation 1223/2009 and its amendments.
What does Methylimidazoliumpropyl p-Phenylenediamine HCl do in cosmetics?
Methylimidazoliumpropyl p-Phenylenediamine HCl functions as: Hair Dyeing - oxidative hair dye precursor. It is classified as a cosmetic ingredient in our database. CAS number: 220158-86-1.
What is the Margin of Safety for Methylimidazoliumpropyl p-Phenylenediamine HCl?
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.
Compliance Tools
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