Optical brighteners
- Chemicals
- 120
- Suppliers
- 389
About optical brighteners
Optical brighteners, also called fluorescent whitening agents, absorb invisible ultraviolet light and re-emit it as blue light. This hides the natural yellow cast of a material and makes it look whiter and brighter. The main chemical types are stilbene derivatives, distyrylbiphenyls, benzoxazoles and coumarins, with Colour Index names starting with Fluorescent Brightener.
Read more about optical brightenersShow less
Laundry detergents, paper and board, textiles, plastics and coatings are the main uses. Detergent brighteners are often distyrylbiphenyl or stilbene types, paper mills use di-, tetra- and hexa-sulfonated stilbenes depending on whether they add the brightener at the wet end or at the size press, and plastics use thermally stable benzoxazoles.
Specify the Colour Index name, active content, form (powder or liquid), E value or absorbance, solubility and compatibility with the process. Food contact paper and plastics may need specific approvals, and some brands limit brighteners in products for babies or sensitive skin. Optical brighteners are classified under HS subheading 3204.20.
Top optical brighteners
Showing 1 to 48 of 120 chemicals, most searched and traded first.
BenzoxazoleCAS 273-53-0C7H5NO73 suppliers
BenzothiazoleCAS 95-16-9C7H5NS79 suppliers
Fluorescent brightener 28C40H44N12O10S29 suppliers
Potassium persulfateCAS 7727-21-1K2O8S2114 suppliers
2,2'-(1,2-Ethenediyl)bis(5-((4-(bis(2-hydroxyethyl)amino)-6-(phenylamino)-1,3,5-triazin-2-yl)amino)benzenesulfonic acidCAS 4404-43-7C40H44N12O10S21 supplier
Potassium caroateCAS 37222-66-5H3K5O18S41 supplier
4-Methyl-7-diethylaminocoumarinCAS 91-44-1C14H17NO225 suppliers
Diaminostilbenedisulfonic acidCAS 81-11-8C14H14N2O6S213 suppliers
Fluorescent brightener 184CAS 7128-64-5C26H26N2O2S45 suppliers
Benzenesulfonic acid, 4,4',4'',4'''-(21H,23H-porphine-5,10,15,20-tetrayl)tetrakis-, tetrasodium saltCAS 35218-75-8C44H30N4O12S41 supplier
1,2,3-Benzotriazin-4-oneCAS 90-16-4C7H5N3O8 suppliers
CellufluorCAS 4193-55-9C40H42N12Na2O10S27 suppliers
DamcCAS 87-01-4C12H13NO25 suppliers
Tetrakis(4-sulfonatophenyl)porphyrinCAS 39174-47-5C44H26N4O12S4-41 supplier
4,4',4'',4'''-(Porphyrin-5,10,15,20-tetrayl)tetrabenzenesulfonic acid xhydrateCAS 2824959-07-9C44H32N4O13S4Request quotes
C.I. Fluorescent Brightener 351CAS 38775-22-3C28H22O6S210 suppliers
Ro 24-7429CAS 139339-45-0C14H13ClN41 supplier
Fluorescent brightener 24CAS 12224-02-1C40H40N12Na4O16S41 supplier
Cellu-briteCAS 133-66-4C44H34N12Na2O6S2Request quotes
Benzoxazole, 2,2'-(1,2-ethenediyl)bis(5-methyl-CAS 17233-65-7C18H14N2O24 suppliers
4-(3-(4-Chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)benzenesulphonamideCAS 2744-49-2C15H14ClN3O2SRequest quotes
Fba 185CAS 2866-43-5C18H10N2O2S3 suppliers
4,4'-Bis(2-benzoxazolyl)stilbeneCAS 1533-45-5C28H18N2O235 suppliers
Fluorescent brightener 236CAS 3333-62-8C25H15N3O21 supplier
4,4'-Diamino-2,2'-stilbenedisulfonic acid, (E)-CAS 28096-93-7C14H14N2O6S2Request quotes
2-StyrylbenzothiazoleCAS 1483-30-3C15H11NSRequest quotes
Blankophor BACAS 12768-92-2C40H42N12Na2O10S26 suppliers![Disodium, 5-[(4,6-dianilino-1,3,5-triazin-2-yl)amino]-2-[2-[4-[(4,6-dianilino-1,3,5-triazin-2-yl)amino]-2-sulfonatophenyl]ethenyl]benzenesulfonate chemical structure, C44H34N12Na2O6S2](/s/HOSFCSQXJQXSIQ-UHFFFAOYSA-L.svg)
Disodium, 5-[(4,6-dianilino-1,3,5-triazin-2-yl)amino]-2-[2-[4-[(4,6-dianilino-1,3,5-triazin-2-yl)amino]-2-sulfonatophenyl]ethenyl]benzenesulfonateC44H34N12Na2O6S2Request quotes
Fluorescent brightener 28C40H44N12NaO10S2Request quotes
Belofor KBCAS 7342-13-4C34H30N10O8S2Request quotes
Fluorescent brightener 220CAS 16470-24-9C40H40N12Na4O16S427 suppliers
Fluorescent brightener 367CAS 5089-22-5C24H14N2O219 suppliers
Manganese(III)-tetrakis(4-sulfonatophenyl)porphyrinCAS 88992-32-9C44H24MnN4O12S4-3Request quotes
Ubistatin ACAS 759437-26-8C34H24N4O16S4Request quotes
Fluorescent brightener 85CAS 12224-06-5C36H34N12Na2O8S25 suppliers
4-Amino-4'-nitrostilbene-2,2'-disulfonic acidCAS 119-72-2C14H12N2O8S23 suppliers
Tinopal 5BMCAS 13863-31-5C38H38N12Na2O8S21 supplier
Benzoylamido-4'-aminostilbene-2,2'-disulfonateCAS 25431-18-9C21H18N2O7S2Request quotes
Disodium 4,4'-bis((4-anilino-6-methoxy-1,3,5-triazin-2-yl)amino)stilbene-2,2'-disulphonateCAS 3426-43-5C34H28N10Na2O8S22 suppliers
Disodium distyrylbiphenyl disulfonate, (E,E)-CAS 56776-28-4C28H20Na2O6S22 suppliers
TinopalCAS 32466-46-9C40H40N12O8S25 suppliers
2-Ethoxy-2'-ethyloxanilideCAS 23949-66-8C18H20N2O319 suppliers
Benzenesulfonic acid, 5-(2H-naphtho(1,2-d)triazol-2-yl)-2-(2-phenylethenyl)-, sodium salt (1:1)CAS 6416-68-8C24H16N3NaO3SRequest quotes
4,4'-Bis(5-methyl-2-benzoxazolyl)stilbeneCAS 2397-00-4C30H22N2O21 supplier
Benzonitrile, 2,2'-(1,4-phenylenedi-2,1-ethenediyl)bis-CAS 13001-39-3C24H16N213 suppliers
Fluorescent brightener 264CAS 76482-78-5C40H38N12Na6O22S63 suppliers
Benzoxazole, 2-(4-(2-(4-(2-benzoxazolyl)phenyl)ethenyl)phenyl)-5-methyl-CAS 5242-49-9C29H20N2O216 suppliers
4,4'-Bis(2-(2-methoxyphenyl)ethenyl)-1,1'-biphenylCAS 40470-68-6C30H26O223 suppliers
Top suppliers of optical brighteners
Manufacturers and traders with live products in this category. Paid members appear first.
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Optical brighteners suppliers by country
Countries with at least 5 suppliers in this category. Open one to see its manufacturers and traders.
New optical brighteners from suppliers
Products recently listed by manufacturers and traders in this category.
Latest buy requests for optical brighteners
Open requests from buyers. Suppliers can quote after signing in.
- 1 quoteBenzoxazole200 bags To India 8 d ago
- 0 quotesAcetylcholine bromide40 bags+ 2 more products To Turkey 8 d ago
- 1 quoteBenzothiazole100 kg To Saudi Arabia 8 d ago
- 0 quotesPrilocaine500 kg+ 1 more products To IndiaQuarterly need 9 d ago
- 1 quoteAcetylcholine chloride100 kg+ 2 more products To KenyaMonthly need 9 d ago
- 1 quoteBenzothiazole2 kg To Bangladesh 10 d ago
Buyer names and contact details stay private until the buyer accepts a quote.
Guides for buyers
Practical reading on grades, documents, regulation and shipping before you buy.
- Article · QualityWhat a certificate of analysis should contain
The parts of a complete COA, how to read it against your specification, the warning signs of a weak or copied certificate and how to verify results.
- Article · SourcingHow to write an RFQ that gets fast and accurate quotes
What suppliers need to quote quickly and comparably: exact product identity, quantity and packing, delivery terms, documents, samples and payment, with a ready to use template.
- Guide · Trade and logisticsIncoterms 2020 for chemical buyers
The eleven Incoterms 2020 rules from a chemical buyer's point of view, with the traps around CIF insurance, FOB for containers, EXW exports, DDP imports and dangerous goods.
Frequently asked questions
Quick answers about buying optical brighteners on CompoundList.
What are optical brighteners?
Fluorescent whitening agents that absorb ultraviolet light and emit blue light in detergents, paper, textiles and plastics.
How many optical brighteners are listed on CompoundList?
CompoundList lists 120 chemicals in optical brighteners. 389 suppliers offer products in this category.
Which optical brighteners are the most popular?
The most searched and traded optical brighteners on CompoundList include Benzoxazole, Benzothiazole, Fluorescent brightener 28, Potassium persulfate and 2,2'-(1,2-Ethenediyl)bis(5-((4-(bis(2-hydroxyethyl)amino)-6-(phenylamino)-1,3,5-triazin-2-yl)amino)benzenesulfonic acid. They are part of the wider dyes and pigments family.
How do I buy optical brighteners in bulk?
Open a chemical to compare its suppliers, or post one buy request with the product, grade, quantity and destination. Matching suppliers send you quotes, and your contact details stay private until you accept one.