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Terephthalylidene Dicamphor Sulfonic Acid
Water-soluble UVA filter; photostable, for the aqueous phase of broad-spectrum systems.
Under developmentUV filters
Identity
- INCI name
- Terephthalylidene Dicamphor Sulfonic Acid
- Also known as
- TDSA · Ecamsule
- IUPAC name
- 3,3′-(1,4-Phenylenedimethylidene)bis(7,7-dimethyl-2-oxobicyclo[2.2.1]heptane-1-methanesulfonic acid)
- CAS number
- 92761-26-7
- Molecular formula
- C28H34O8S2
- Molecular weight
- 562.69 g/mol
- Appearance
- White to off-white powder
Typical specification
| Parameter | Typical value |
|---|---|
| Purity (HPLC) | Target ≥ 98.0 % |
| Specification | Under development; available on request |
Indicative values. The lot certificate of analysis governs. Full TDS and SDS available on request; analytical methods shared under CDA.
Applications
- •Broad-spectrum sun care (aqueous phase)
- •Anti-ageing day care
Regulatory note
Listed UV filter in the EU (Annex VI) and Korea (MFDS restricted-use list). In the USA only within specific approved products.