Phloxine B (CAS 18472-87-2) User Guide: Properties, Applications, and Usage
Table of Contents
1. Product Overview
Product Name: Phloxine B (Acid Red 92)
CAS Number: 18472-87-2
Molecular Formula: C20H2Br4Cl4Na2O5
Molecular Weight: 829.64 g/mol
Appearance: Dark red to purple crystalline powder
Purity: ≥95% (HPLC grade)
2. Key Applications of Phloxine B
- Biological staining for microscopy and histology
- Cosmetic colorant in lipsticks and blushes
- Photosensitizer in photodynamic therapy research
- Industrial dye for paper and textile industries
- Antimicrobial agent in food packaging materials
3. Usage Guidelines
Preparation Methods:
- Dissolve in distilled water (0.1-1% w/v concentration)
- For organic solutions, use ethanol or DMSO
- Filter through 0.22μm membrane before critical applications
Safety Precautions:
- Wear PPE: gloves, goggles, and lab coat
- Avoid inhalation and direct skin contact
- Store at 2-8°C in airtight, light-resistant containers
4. Practical Use Cases
Case 1: Microscopy Staining
0.5% aqueous solution used for fungal cell wall visualization in plant pathology studies, showing enhanced contrast under fluorescent microscopy.
Case 2: Cosmetic Formulation
Approved by FDA as D&C Red No. 28, used in premium lipstick formulations at 0.1-0.5% concentration for stable pink hues.
Case 3: Cancer Research
Combined with LED light exposure (530nm) in photodynamic therapy trials against melanoma cells, achieving 78% cancer cell inhibition at 10μM concentration.
5. Contact Information
For technical specifications or bulk orders:
- Email: info@vivalr.com
- Phone: (86) 15866781826
Factory-direct pricing available for quantities ≥1kg. MSDS and COA provided with all orders.