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Custom Optical Brightener CBS-X Supplier
  • Optical Brightener CBS-X
  • Optical Brightener CBS-X Zhejiang Hongyi Chemical Co., Ltd.

Optical Brightener CBS-X

C.I.: 351 CAS NO: 27344-41-8

Chemical name
Disodium 4,4'-bis(2-sulfonatostyryl)biphenyl 
Structural formula

Main purpose
Suitable for use in detergents, it is blended into synthetic laundry detergents, soap, and perfumed soap to give them a bright, white, and lustrous appearance. It is used to brighten cotton, nylon, and other fabrics; it provides excellent brightening effects on synthetic fibers and polyamides; and it also effectively brightens protein fibers and amino plastics.

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Quality and Technical Specifications
Appearance Yellowish-green granules/powder
Purity ≥98.5%
Color Blue light/Red light
UV Absorption Wavelength 349 nm ± 1
Extinction Coefficient at 1% 1105–1181
Molecular Weight 562.6
Storage Method
25KG per carton/drum It is highly stable when stored at room temperature and should be kept in a dry place away from light.
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About Us
Zhejiang Hongyi Chemical Co., Ltd.
Established in 2018, Zhejiang Hongyi Chemical Co., Ltd. is strategically located in the industrial zone of Longquan City, Zhejiang Province. Over the years, the company has made significant strides in its development, establishing a robust research and development center and two production bases. Hongyi has forged collaborative research partnerships with several renowned universities in China, contributing to the formulation of national standards. As a national Zhejiang Hongyi Chemical Co., Ltd. high-tech enterprise and custom Optical Brightener CBS-X supplier, Hongyi specializes in the research, development, manufacturing, and technical services of Optical Brightener CBS-X.
Hongyi's market share in the field of Optical Brightener CBS-X continues to expand significantly. We are deeply committed to serving our domestic end customers and are actively extending our reach into the European, African, and Southeast Asian markets. Our efforts have established an overseas office in Hai Phong, Vietnam.
As we look towards the 21st century, Hongyi is dedicated to continuous innovation and market-driven development. We prioritize our customers' needs and strive to provide reliable quality, efficient and convenient application technology services, and cost-effective solutions to create value for all our partners. We are eager to accompany you with sincerity and work together to build a bright future.
Qualification Certificate
  • A Method for Preparing a Nano-TiO₂ Composite Fluorescent Brightener
  • Processing equipment for a fluorescent brightener
  • A fluorescent brightening composition, method for preparing the same, and application thereof
  • High-Tech Enterprise Certificate
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