Acid Orange 7 is sodium 4-[(2-hydroxy-1-naphthyl)azo]benzenesulphonate. It is used as a dye, as a biological stain and, to a limited extent, as an indicator. It is an orange, odourless powder. Cosmetic use is subject to the applicable cosmetic-ingredient conditions.
Full specification
- Molecular formula
- C16H11N2NaO4S
- Appearance
- Orange, odourless powder
- Synonyms
- C.I. Acid Orange 7
Compliance & regulatory
Region: EU — Chemotto S.r.l., Milano
- REACH-aligned supply
- CLP-labelled
- Cosmetics Regulation 1223/2009
REACH REACHRegistration, Evaluation, Authorisation and Restriction of Chemicals — the EU chemicals regulation (EC 1907/2006). CLP CLPClassification, Labelling and Packaging — the EU regulation (EC 1272/2008) for hazard communication. SVHC SVHCSubstance of Very High Concern — flagged on the REACH Candidate List for possible authorisation or restriction.
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