UV-A Filter
Sunbest-DPT
INCI: Disodium Phenyldibenzimidazole Tetrasulfonate
Formulator notes
Water-soluble UV-A II filter with its peak at 335 nm, for lightweight aqueous sunscreens. Photostable. Use 1-5% as acid.
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
- Water-soluble UV-A filter: protects mainly in UV-A, with some UV-B overlap.
- Peak absorption at 335 nm (UV-A II).
- Benzimidazole core with multiple sulfonate groups absorbs UV-A photons.
- Engineered for high photostability.
Technical data
| INCI name | Disodium Phenyldibenzimidazole Tetrasulfonate |
|---|---|
| Also known as | DPT |
| IUPAC name | disodium 4,4'-[1,3-phenylene bis(1H-benzimidazole-2,5-diyl)]dibenzenesulfonate |
| CAS number | 180898-37-7 |
| EC number | 429-750-0 |
| HSN code | 29339990 |
| Type | UV-A Filter |
| Form | Powder |
| Solubility | Water |
| Typical dosage | 1-5% (as acid) |
| UV profile | UV-A II: 335nm |
| UV band | UV-A |
| Peak absorption (nm) | 335 |
| Molecular weight (g/mol) | 675 · High for a UV filter (over 500 g/mol) |
| pH min | 5 |
| pH max | 10 |
| Pack size (kg) | 25 |
| MOQ (kg) | 300 |
| Shelf life (years) | 3 |
| REACH registered | No |
| REACH regions | - |
| REACH tonnage band | - |
Applications
- Sunscreens & SPF Products
- Foundations & BB Creams
- Lip Care (Balms, Lipsticks)
Frequently asked
What is Sunbest-DPT?
Sunbest-DPT is UV-A filter, INCI name Disodium Phenyldibenzimidazole Tetrasulfonate (CAS 180898-37-7), supplied by Vinner Labs for sunscreens & SPF products.
What is the typical use level of Sunbest-DPT?
The typical dosage of Sunbest-DPT is 1-5% (as acid) in finished formulations. Exact levels depend on the application and regional regulations.
What is Sunbest-DPT soluble in?
Sunbest-DPT is soluble in: Water.
Related ingredients
Samples & documentation
Request a sample, spec sheet, quotation or regulatory statement for Sunbest-DPT, ask a specialist.