Optical Brightener CBS-X/ Disodium 4, 4′-Bis (2-sulfostyryl) Biphenyl

• Customization: Available
• CAS No.: 27344-41-8
• Formula: C28h23nao6s2
• Model NO.: CAS: 27344-41-8
• EINECS: 248-421-0
• Color: Green
• Kind: Detergent
• Appearance: Powder
• Storing: Store in a Cool, Dry, Well-Ventilated Area
• Transport Package: 25 Kg / Carton/Bag
• Trademark: DEBORN
• Origin: China
• HS Code: 29049090

Product Description

Chemical Name: 4.4-bis(2-disulfonic acid styryl) biphenyl
Synonym: Optical brightening agent CBS-X; Flourescent brightener 351; CF 351; Disodium 4,4'-bis(2-sulfostyryl)biphenyl
Molecular Formula: C28H18O6S2Na2
Molecular Weight: 562
Structure     


C.I. 351

Specification

Appearance	Light yellow -green and good flowing granular/powder
Moisture	5% max
Indissoluble substance (in water)	0.5%max
E1	1120+/_30
In ultra-violet range	348-350nm

Application  
Optical brightener CBS-X is widely used detergent, soap and cosmetics industries etc. It is also used in textile. It is the most excellent whitening agent for washing powder, washing cream and liquid detergent. It is liable to biology degradation and readily soluble in water, even in low temperature, especially suitable for liquid detergent. Products of the same kind made in foreign countries include, Tinopal CBS-X, etc.

Packing: 25 kg / carton/bag
1125kg/pallet, 10pallets=11250KG/20'GP

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CBS-X exhibits excellent thermal and chemical stability, making it suitable for high-temperature processes (e.g., textile dyeing, plastic molding). It also remains effective under UV exposure and in acidic/alkaline conditions. Commonly applied to synthetic fibers (e.g., polyester, nylon) and plastics, CBS-X improves visual appeal without altering material composition. It is especially effective in detergents, where it deposits on fabrics during washing to maintain a "whiter-than-white" appearance.