Optical Brightener CBS-X
Optical Brightener CBS-X is supplied by Shandong Grand Chemical for laundry powder, liquid detergent, soap, water-based paints and inks. C.I. 351. CAS 27344-41-8. 4,4'-Bis(2-disulfonic acid styryl)biphenyl, disodium salt. Use the specification table below; figures that are not printed on the source product page are marked TBC or omitted.
Specification
| C.I. No. | 351 |
|---|---|
| CAS | 27344-41-8 |
| Molecular formula | C28H20O6S2Na2 |
| Formula weight | 562.60 |
| Forms | Powder and granule |
| Appearance | Light green powder or granule |
| Ionicity | Anionic |
| Shade | Slightly violet |
| Dosage (source) | Wash powder 0.02–0.05%; concentrated 0.05–0.2%; liquid 0.05–0.2%; soap 0.01–0.05%. |
| Packing | 25 kg fiber drum (powder or granule) |
| Synonyms on source page | Tinopal CBS-X, FBA 351 |
What this grade is for
- Water-soluble detergent grade for powder, liquid and soap.
- Application notes treat CBS-X as the premium detergent brightener versus DMS-X.
Questions we actually get
What is CBS-X used for?
Optical Brightener CBS-X is listed for laundry powder, liquid detergent, soap, water-based paints and inks.
Do you publish a price?
No. The live catalog does not list prices. Ask for a quote with your polymer or fiber, process temperature and monthly volume.
Can I get TDS / COA / SDS?
Yes — request the current document set by WhatsApp or email. This site does not host downloadable PDFs because the source site does not publish a document library.




