Detailed Description:
Optical Brightener CBS-X (Disodium 4,4′-bis(2-sulfostyryl)biphenyl) is a highly effective fluorescent whitening agent specifically formulated for detergent and cleaning industries. It works by absorbing invisible UV light and re-emitting it as visible blue light, making fabrics appear whiter and brighter.

CBS-X is highly soluble in water and maintains strong stability in detergent formulations, even under high alkalinity. It is compatible with anionic, non-ionic, and most cationic surfactants, making it suitable for both powder and liquid detergents.

It has excellent resistance to chlorine bleach, strong whitening effects at low dosage, and a long-lasting brightening performance, ensuring improved fabric appearance after multiple washes.

Applications:
• Laundry detergents (powder, liquid, gel)
• Fabric care products
• Soaps and cleaning agents
• Industrial detergent formulations

Technical Specifications:
• Chemical Name: Disodium 4,4′-bis(2-sulfostyryl)biphenyl
• CAS No.: 27344-41-8
• Appearance: Light yellowish-green powder/granules
• Purity: ≥ 99%
• Water Solubility: Excellent
• PH Stability: Stable at pH 7–11
• Dosage: 0.05%–0.3% depending on application
• Lightfastness: Excellent under sunlight
• Compatibility: Works well with anionic & non-ionic surfactants