1,4-Dihydroxybenzene (Hydroquinone), with the exception of entry 14 in Annex III
⚠ EU RestrictedIdentification
CAS Number 123-31-9
EINECS / EC 204-617-8
CosIng Ref 87716
Chemical Name benzene-1,4-diol
IUPAC Name —
Formula C6H6O2
Mol. Weight 110.11 g/mol
InChIKey QIGBRXMKCJKVMJ-UHFFFAOYSA-N
Function & Classification
EU Regulatory Status
Safety Profile
No toxicology data available yet for this ingredient.
Check SCCS opinions or CIR reports for published safety assessments.
NOAEL · Dermal Absorption % · Sensitization
Formulation Guidelines
Usage level, pH range, solubility and addition phase not yet available.
Usage Level % · Addition Phase · Solubility
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