Fluorescent Brightener 378
[CAS# 40470-68-6]

Identification

• Classification: Biochemical >> Biochemical reagent >> Biological dye
• Name: Fluorescent Brightener 378
• Synonyms: 4,4'-Bis(2-methoxystyryl)-1,1'-biphenyl; 1,1'-Biphenyl-4,4'-bis[2-(methoxyphenyl)ethenyl]; CBS-127
• Molecular Formula: C₃₀H₂₆O₂
• Molecular Weight: 418.53
• CAS Registry Number: 40470-68-6 (164908-53-6)
• EC Number: 254-935-6
• SMILES: COC1=CC=CC=C1/C=C/C2=CC=C(C=C2)C3=CC=C(C=C3)/C=C/C4=CC=CC=C4OC

Properties

• Melting point: 216-222 °C

Safety Data

• Hazard Symbols: GHS07 Warning
• Risk Statements: H302-H315-H319-H335
• Safety Statements: P261-P305+P351+P338

Discovery and Applications

Fluorescent Brightener 378, also known as a type of optical brightening agent, is an important chemical compound used to enhance the brightness and whiteness of various materials. This substance falls within the category of fluorescent dyes, specifically designed to absorb ultraviolet light and re-emit it as visible blue light, thereby improving the appearance of the treated material.

The discovery of Fluorescent Brightener 378 emerged from the need for more effective agents to counteract yellowing and enhance brightness in a range of industrial applications. The compound was developed to address the challenges associated with maintaining the aesthetic quality of products subjected to environmental factors that lead to discoloration and dullness.

Fluorescent Brightener 378 is predominantly used in the textile industry. It is applied to fabrics and fibers to significantly boost their whiteness. By absorbing UV light, the brightener re-emits blue light, which neutralizes any yellowish tones and makes the fabric appear brighter and cleaner. This enhancement is crucial for textiles, where a bright, true white color is often desirable for aesthetic reasons.

In addition to textiles, Fluorescent Brightener 378 is utilized in the paper industry. When incorporated into paper products, it improves their whiteness and brightness, making them more visually appealing. This is particularly important for high-quality printing papers and other paper products where a bright and clean appearance is essential for both function and presentation.

The compound is also used in the formulation of detergents and cleaning products. By adding Fluorescent Brightener 378 to these products, manufacturers can enhance the brightness of fabrics and other surfaces. The brightener helps to counteract the yellowing that occurs over time, thereby maintaining the visual appeal of textiles and other cleaned items.

The effectiveness of Fluorescent Brightener 378 is well-documented in various studies. Research has demonstrated that it significantly improves the brightness and whiteness of treated materials. Its ability to absorb UV light and re-emit it as visible blue light makes it an effective solution for improving the visual quality of textiles, paper, and other products.

In practical applications, Fluorescent Brightener 378 is typically used in low concentrations, making it a cost-effective solution for enhancing the appearance of materials. It integrates well with other ingredients commonly used in textile processing, paper production, and cleaning products, making it a versatile choice for various industrial applications.

In summary, Fluorescent Brightener 378 is a valuable chemical compound used to enhance the brightness and whiteness of textiles, paper, and cleaning products. Its role in absorbing UV light and re-emitting it as visible blue light is essential for maintaining the aesthetic quality of a wide range of materials.

References

2009. 4,4'-Bis(2-methoxy-lstyr-yl)biphen-yl. Acta Crystallographica Section E, Structure Reports Online, 65(8).
DOI: 10.1107/s1600536809026920

2009. CCDC 744432: Experimental Crystal Structure Determination.
DOI: 10.5517/ccszmy9