UV-A Filter
Sunbest-MXS
INCI: Terephthalidylene Dicamphor Sulfonic Acid

Formulator notes
Photostable UV-A filter (peak 345 nm) that dissolves in water after neutralisation, for example with triethanolamine. Use 1-4%.
Hold it The molecule in AR on a phone, in 3D anywhere else.
Open in the SPF Lab An in-silico simulator over the Sunbest range, pre-loaded with this filter.
Highlights
- One of the most effective UV-A filters: peak 345 nm.
- Highly photostable with excellent wash-off resistance.
- Water-soluble: boosts sensory feel and formulation flexibility.
- Non-comedogenic.
Technical data
| INCI name | Terephthalidylene Dicamphor Sulfonic Acid |
|---|---|
| Also known as | TDSA, MXS |
| IUPAC name | 3,3'-(1,4-phenylenedimethylidyne)bis(7,7-dimethyl-2-oxobicyclo[2.2.1]heptane-1-methanesulfonic acid) |
| CAS number | 92761-26-7 |
| EC number | 410-960-6 |
| HSN code | 29147990 |
| Type | UV-A Filter |
| Form | Powder (white) |
| Solubility | Water-soluble after neutralisation (e.g. with triethanolamine) |
| Typical dosage | 1-4% |
| UV profile | UV-A: 320-350nm, peak absorption at 345nm |
| UV band | UV-A |
| Peak absorption (nm) | 345 |
| Molecular weight (g/mol) | 562.71 · High for a UV filter (over 500 g/mol) |
| pH min | 2 |
| pH max | 8 |
| Pack size (kg) | 25 |
| MOQ (kg) | 300 |
| Shelf life (years) | 1-2 |
| REACH registered | No |
Applications
- Sunscreens & SPF Products
- Foundations & BB Creams
- Lip Care (Balms, Lipsticks)
Frequently asked
What is Sunbest-MXS?
Sunbest-MXS is UV-A filter, INCI name Terephthalidylene Dicamphor Sulfonic Acid (CAS 92761-26-7), supplied by Vinner Labs for sunscreens & SPF products.
What is the typical use level of Sunbest-MXS?
The typical dosage of Sunbest-MXS is 1-4% in finished formulations. Exact levels depend on the application and regional regulations.
What is Sunbest-MXS soluble in?
Sunbest-MXS is soluble in: Water-soluble after neutralisation (e.g. with triethanolamine).
Related ingredients
Samples & documentation
Request a sample, spec sheet, quotation or regulatory statement for Sunbest-MXS, ask a specialist.