Specification
- INCI Name:Phenylbenzimidazole Sulfonic Acid
- Chemical Name: 2-Phenylbenzimidazole-5-Sulfonic Acid
- CAS No.: 27503-81-7
- Other Name:PBSA,UV-T
- Molecular Formula:C13H10N2O3S
| Items | Specifications |
| Appearance | White to off-white crystalline powder |
| Odor | Neutral, comparable to standard |
| Assay (HPLC) | 98.0-102.0 % |
| Specific Extinction (E1%,1cm at 302±2nm) | 920 -990 |
| Dry loss | 1.0 % Max |
| Acetic acid | 5000 ppm Max |
Structure:

Application
Water soluble
A strong UV-B absorber providing great SPF boost in combination with a wide range of sun filters
Excellent stability, photostability and safety profile
Very suitable for water-based transparent sunscreen products such as gels or sprays as well as for creams and lotions
The pH of formulations with this product should be maintained above pH 7.0 to prevent re-crystallization.
Package & Storage
Packed in 25KGS drum
Sealed, kept in a cool,dry place,protected from light.
