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Optical brightener CBS-X, also known as fluorescent whitening agent CBS-X or optical whitener CBS-X. 

iSuoChem® CBS-X is a detergent-specific optical brightener that absorbs UV light and re-emits visible blue light, which helps to offset the yellowing appearance of natural fibers. iSuoChem® CBS-X fluorescent whitening agent is soluble and can achieve high levels of whiteness and brightness from cold to medium water wash temperatures, even for short wash times.

Product Details:

Product name: Optical Brightener CBS-X

Other name: Fluorescent Whitening Agent CBS X

Product Groups: Optical Effect Products and Stabilizers

CAS NO.: 27344-41-8

Brand Code: iSuoChem® CBS-X

Equivalent International Brand: Tinopal CBS-X

Appearance: Yellowish pigmentYellowish green crystalline powder/granular

Extinction coefficient: 1140

Chemical Name:
2,2′-([1,1′-Biphenyl]-4,4′-diyldi-2,1-ethenediyl)bis-benzenesulfonic acid disodium salt

Molecular formula: C28H20S2O6Na2

MW: 562

Purity: 99% Min

Water Content: 5% Max

Certificaitons for Optical brightener:  SGS, EU Reach for OB-1, EU Reach for OB, South Korea K-REACH OB-1, South Korea K-REACH OB, Russia SR State Registration, Turkey KKDIK Pre-registration Confirmation letter by chdglobal, Certification for Safe Transport of Chemical Goods.

Detailed Pictures

Characteristics of Optical brightener CBS-X
1. High whiteness: Optical brightener CBS-X has excellent whitening effect, effectively maintains and improves the whiteness of white fibers, improves the whiteness of washing powder.
2. Excellent stability and solubility: This type of fluorescent whitening agent are quite stable in chlorinated detergents. CBS-X can give a strong white effect to cellulose fibers over the entire temperature range (i.e. from cold water to hot water washing). 

Besides, CBS-X is highly soluble in water at low temperatures, so it can give a high white effect even when washed at low temperatures and for short washing times.

Stable to bleaching agents such as hypochlorites and peroxides as well as alkalis, acids and sweat.
In general, CBS-X is easy to formulate in all product types.

3. No staining (pre-staining): Optical brightener CBS-X is a low-spotting fluorescent whitening agent due to its good leveling properties. This is a key factor for concentrated and liquid detergents.
4. Good light fastness: Wet and dry light fastness. Ensures consistent whiteness even when washing is dried outdoors.

5. High affinity for cellulose fibers for fluorescent whitening agent CBS-X

6. Consistent color: As a replacement of Tinopal CBS-X, China self-own brand iSuoChem CBX-X can provides a strong whiteness on cellulose fibers without turning green even after repeated washing. In other words, white stays longer. No greening after multiple washes.

Applications of Optical Brightener CBS-X:

Optical Brightener CBS-X, is a fluorescent Whitening agent which can be suitable for addition to concentrated laundry detergents, conventional powdered laundry detergents, liquid detergents, industrial detergents, detergent bars, detergent pastes, rinse softeners, soaps, water-based coatings and builders, and also for use in fibers, nylon, wool, paper, cotton, T/C blends. CBS-X significantly improves the color consistency and white appearance of such detergents.
Recommended concentration: 0.05-1%, depending on the application and desired whiteness.

Packing and Quantity:
25kgs or 100 kgs fibre drum or paper bags, cartons based on your requirements.
Storage: Keep in cool and dry place, far away from high temperature and sunshine.