Optical Brightener Tinopal CBS-X

Chemical Name:

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

Formula C28H20S2O6Na2  optical brightener cbs-x Tinopal CBS-X chemical structure
MW      562
CAS# 27344-41-8

Synonym Name:

Tinopal CBS-X, Fluorescent Brightener 351 (FB 351 ) , C.I.351


Appearance Yellow powder
Water content ≤5%
Purity ≥99%


>Optical Brightener CBS-X is used in detergent, soap, washing powder, and water-based coatings, also used for fiber, nylon, wool, paper, cotton, T/ C Blends.

>Tinopal CBS-X recommended concentrations is 0.05-0.5% depending on the application and degree of desired whiteness.

Handling and Safety: 

>For additional handling and toxicological information, please consult us for Maternal Safety Date Sheet.


10/15/25kg per drum, or according to customers’ requirements.


Tinopal CBS-X, Optical Brightener CBS-X, CAS 27344-41-8, FBA 351 msds

Tinopal CBS-X, Optical Brightener CBS-X, CAS 27344-41-8, FBA 351 tds

Need Sample or Quote?

Related Products

Optical brightener for plastics, cotton, detergent, paper

Product Synonyms CAS Number Features

Optical Brightener For Plastics

FP-127 Uvitex FP 40470-68-6 the best OBA for PVC products
KCB Hostalux KCB 5089-22-5 OBA for plastics and lacquer, especial for EVA
KSB Telalux KSB 7128-54-5 OBA for transparent plastics, recycled PE/PP
KSN Hostalux KSN 5242-49-9 OBA For high-temperature plastics, 100% counter
OB Uvitex OB, Tinopal OB 7128-64-5 universal plastic OBA, also for ink, coating
OB-1 Eastobrite OB-1 1533-45-5 universal plastic OBA,  green or yellow shade
PF FBA 135 1041-00-5 strong red shade

Optical Brightener For Cotton

4BK FBA 113 12768-91-1 for cotton or with fabic blend, red or blue shade
ER-I FBA 199 13001-39-3 powder & liquid form, PE, PA, CA fiber, high temperature whitening
ER-II FBA 199:1 13001-38-2 powder & liquid form, PE, PA, CA fiber, lower temperature whitening
EBF FBA 185 12224-41-8

Optical Brightener For Detergent

CBS-X Tinopal CBS-X 27344-41-8 for detergent, soap, washing

Optical Brightener For Paper

VBL FBA 85 12224-16-7 for paper, also for cotton, vinylon, nylon
BBU FBA 220 16470-24-9 Replace VBL