Bromothymol blue is a sulfonphthalein dye used as a pH indicator. It is a weak acid that is yellow in acidic solutions, blue in basic solutions and green in neutral solution. It is an odourless, white to cream-coloured solid. Cosmetic use is subject to the applicable cosmetic-ingredient conditions.
Full specification
- Molecular formula
- C27H28Br2O5S
- Appearance
- Odourless, white to cream-coloured solid
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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