2,3-Dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carbaldehyde

2,3-Dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carbaldehyde in plain language

What it is

On cosmetic ingredient lists it appears as “2,3-DIMETHYL-4-FORMYL-1-PHENYL-5-PYRAZOLONE”.

Also known as 2,3-DIMETHYL-4-FORMYL-1-PHENYL-5-PYRAZOLONE · 1,5-dimethyl-3-oxo-2-phenylpyrazole-4-carbaldehyde · 2,3-dimethyl-5-oxo-1-phenyl-3-pyrazoline-4-carbaldehyde · 4-Antipyrine carboxaldehyde · 4-Antipyrinecarboxaldehyde · 4-Formyl-antipyrine

Show all 10 names

4-Formylantipyrine · Antipyraldehyde · Antipyrinaldehyd · Antipyrine, 4-formyl-

What it does

Used in cosmetics as a hair dye.

• Hair dyeing

Is it a concern?

We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

What we know about this ingredient

EPA DSSTox provides the canonical identifier, structure, and synonym profile for this chemical.

• EU·CosIng·Active2,3-Dimethyl-4-Formyl-1-Phenyl-5-Pyrazolone is the organic compound that conforms to the formula:

  • 2,3-Dimethyl-4-Formyl-1-Phenyl-5-Pyrazolone is the organic compound that conforms to the formula:Source →
• US·FDA·listed in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.

  • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for 2,3-Dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carbaldehyde. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

• SCCS

  EU Scientific Committee on Consumer Safety

  No SCCS opinion on file.

• CIR

  Cosmetic Ingredient Review (US expert panel)

  No CIR safety assessment on file.