UV-A/UV-B Filter
Sunbest-3BT
INCI: Tris-biphenyl Triazine
Formulator notes
Photostable broad-spectrum absorber covering UV-B (peak 310 nm) and UV-A II, supplied as an aqueous particle dispersion. Not approved for sunscreens in the US. Use 2-10%, not in sprays.
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
- Broad-spectrum organic absorber covering UV-B and UV-A II.
- Conjugated triazine core with three biphenyl substituents (extended π-conjugation).
- Dissipates absorbed energy non-radiatively without chemical breakdown: hence highly photostable.
Technical data
| INCI name | Tris-biphenyl Triazine |
|---|---|
| Also known as | TBT, 3BT |
| IUPAC name | 2,4,6-tris(biphenyl-4-yl)-1,3,5-triazine |
| CAS number | 31274-51-8 |
| EC number | 479-950-7 |
| HSN code | 29336990 |
| Type | UV-A/UV-B Filter |
| Form | Powder |
| Solubility | Insoluble in water and oils; supplied as an aqueous particle dispersion |
| Typical dosage | 2-10% (not in sprays) |
| UV profile | UV-B: 280-320nm, peak absorption at 310nm. UV-A: only UV-A II from 320-340nm. |
| UV band | Broad-spectrum |
| Peak absorption (nm) | 310 |
| Molecular weight (g/mol) | 537.66 · High for a UV filter (over 500 g/mol) |
| Pack size (kg) | 25 |
| MOQ (kg) | 300 |
| Shelf life (years) | 3-4 |
| REACH registered | No |
| REACH regions | - |
| REACH tonnage band | - |
Applications
- Sunscreens & SPF Products
- Foundations & BB Creams
- Lip Care (Balms, Lipsticks)
Frequently asked
What is Sunbest-3BT?
Sunbest-3BT is UV-A/UV-B filter, INCI name Tris-biphenyl Triazine (CAS 31274-51-8), supplied by Vinner Labs for sunscreens & SPF products.
What is the typical use level of Sunbest-3BT?
The typical dosage of Sunbest-3BT is 2-10% (not in sprays) in finished formulations. Exact levels depend on the application and regional regulations.
What is Sunbest-3BT soluble in?
Sunbest-3BT is soluble in: Insoluble in water and oils; supplied as an aqueous particle dispersion.
Related ingredients
Samples & documentation
Request a sample, spec sheet, quotation or regulatory statement for Sunbest-3BT, ask a specialist.