Optical Brightener CBS-X for Detergents | C.I. Fluorescent Brightener 351 | CAS No. 27344-41-8

Short Description:

Optical Brightener CBS-X (C.I. Fluorescent Brightener 351, CAS 27344-41-8) is a water-soluble fluorescent whitening agent for laundry powders, liquid detergents and detergent bars, helping enhance the whiteness and brightness of washed fabrics.

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Product Detail

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Key Features

Good Water Solubility

CBS-X is suitable for aqueous detergent systems and can be incorporated into both powder and liquid detergent formulations.

Effective Fabric Whitening

CBS-X helps improve the perceived whiteness and brightness of washed fabrics by compensating for unwanted yellowish tones through fluorescence.

Suitable for Different Detergent Formats

CBS-X can be used in laundry powders, liquid detergents, detergent bars and other laundry care formulations.

Performance Across Washing Conditions

CBS-X is suitable for detergent formulations designed for different washing conditions, including lower-temperature and shorter washing cycles.

Whiteness Consistency During Repeated Washing

CBS-X can help maintain consistent whiteness on cellulosic fabrics during repeated washing when appropriately formulated and dosed.

Product Information

Item	Specification
Product Name	Optical Brightener CBS-X
C.I. Name	C.I. Fluorescent Brightener 351
CAS No.	27344-41-8
Chemical Type	Distyryl biphenyl-based fluorescent whitening agent
Appearance	Yellowish-green uniform particles
Maximum Absorption Wavelength (nm)	348–350
Specific Extinction E (1%/1 cm)	1105–1140
Insoluble Substance (%)	≤ 0.5
Particle Size	0.1–0.3 mm

Typical Applications

Laundry Powders

CBS-X can be incorporated into conventional and concentrated laundry powder formulations to enhance the perceived whiteness and brightness of washed fabrics.