Ingredient

SODIUM BROMOTHYMOL BLUE

✓ EU Allowed

Identification

CAS Number 34722-90-2
EINECS / EC 252-169-7
CosIng Ref 99901
Chemical Name sodium 2-[(Z)-(3-bromo-4-hydroxy-2-methyl-5-propan-2-ylphenyl)-(3-bromo-2-methyl-4-oxo-5-propan-2-ylcyclohexa-2,5-dien-1-ylidene)methyl]benzenesulfonate
IUPAC Name
Formula C27H27Br2NaO5S
Mol. Weight 646.4 g/mol
SMILES CC1=C(C=C(C(=C1Br)O)C(C)C)C(=C2C=C(C(=O)C(=C2C)Br)C(C)C)C3=CC=CC=C3S(=O)(=O)[O-].[Na+]
InChIKey NMKFVGALBGZKGW-FKWCIMQXSA-M

Function & Classification

Primary Function HAIR DYEING

EU Regulatory Status

🇪🇺
✓ Allowed — EU Reg. 1223/2009

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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Documents

External Resources