2-phenylbenzimidazole
1. Product Introduction
Product Name: 2-Phenylbenzimidazole (PBI)
Chemical Registration Number/CAS No.:716-79-0
Molecular Formula: C13H10N2
Molecular weight: 194.23
Structural formula:
Properties and uses
Density: 1.06 g/cm³ (standard powder), 0.60 g/cm³ (ultrafine powder).
Appearance: White or pale yellow powder; Melting point: 293-296°C
Solubility: Insoluble in water, but soluble in organic solvents such as ethanol.
This product is used as ultraviolet absorber or anti-aging agent, which can be used in cosmetics, plastics, cables and other products.
2. Quality Standards
The product is available in three specifications: ① Ultra-fine powder: particle size ≥325 mesh, with a content of ≥99.0%; ② Regular powder Grade 1: content ≥99.5%; ③ Regular powder Grade 2: content ≥99.0%.
| colloidal powder | Regular Powder Grade 1 | Regular Powder Grade 2 | method | |
| surface | White ultrafine powder | White crystalline powder | White or pale yellow crystalline powder | |
| grain size ，mesh | ≥325 | — | — | |
| melting point ，℃ | 293-296 | 294-296 | 293-296 | |
| fineness ，% | ≥99.0 | ≥99.5 | ≥99.0 | HPLC |
| loss on drying ，% | ≤0.50 | ≤0.50 | ≤0.50 |
