Fluorescent Brightener 251

Product Name: Fluorescent Brightener 251
CAS No.: 16324-27-9
Chemical Name: Fluorescent Brightener 251
Synonyms: wobital bbk;c.i. 406233;fluorescent brightener 251;C.I. Fluorescent Brightener 114;Fluorescent brightening agent 251;Fluorescent Brightener 251 ISO 9001：2015 REACH;tetrasodium 4,4'-bis[[4-[(2-hydroxyethyl)amino]-6-(m-sulphonatoanilino)-1,3,5-triazin-2-yl]amino]stilbene-2,2'-disulphonate;4,4'-Bis[[4-[(2-hydroxyethyl)amino]-6-(m-sulfoanilino)-1,3,5-triazin-2-yl]amino]-2,2'-stilbenedisulfonic acid tetrasodium salt;2,2'-(1,2-Ethenediyl)bis[5-[4-[(2-hydroxyethyl)amino]-6-[(m-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]benzenesulfonic acid, tetrasodium salt;Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-[[4-[(2-hydroxyethyl)amino]-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-, tetrasodium salt
CBNumber: CB3854985
Molecular Formula: C36H37N12NaO14S4
Formula Weight: 1012.99
MOL File: 16324-27-9.mol

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Fluorescent Brightener 251 Property

Density: 1.68[at 20℃]
vapor pressure: 0Pa at 25℃
Water Solubility: 140.4g/L at 20℃
LogP: -7.51
EPA Substance Registry System: Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-[[4-[(2-hydroxyethyl)amino]-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-, tetrasodium salt (16324-27-9)

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Safety

TSCA: TSCA listed

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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

Biosynth

Product number: FF41180
Product name: Fluorescent Brightener 251
Packaging: 100mg
Price: $1227
Updated: 2026/06/04

Biosynth

Product number: FF41180
Product name: Fluorescent Brightener 251
Packaging: 250mg
Price: $2290
Updated: 2026/06/04

Biosynth

Product number: FF41180
Product name: Fluorescent Brightener 251
Packaging: 500mg
Price: $3515
Updated: 2026/06/04

Biosynth

Product number: FF41180
Product name: Fluorescent Brightener 251
Packaging: 1000mg
Price: $5660
Updated: 2026/06/04

aablocks

Product number: AA00AKZB
Product name: Benzenesulfonic acid, 2,2′-(1,2-ethenediyl)bis[5-[[4-[(2-hydroxyethyl)amino]-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-, sodium salt (1:4)
Purity: 95+%
Packaging: 100mg
Price: $675
Updated: 2026/05/28

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Fluorescent Brightener 251 Chemical Properties,Usage,Production

Uses

Fluorescent brightener 251 is an optical brightener dye.

Flammability and Explosibility

Non flammable

References

[1] Vérité PM , et al.First-principles investigation of the double ESIPT process in a thiophene-based dye. Phys Chem Chem Phys. 2019 Jan 30;21(5):2307-2317.

Fluorescent Brightener 251 Preparation Products And Raw materials

Raw materials

Preparation Products

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Fluorescent Brightener 251 Suppliers

CHINA 9 South Korea 1 United States 3 Global 13

Dideu Industries Group Limited

Tel: +86-29-89586680 +86-15129568250
Email: 1026@dideu.com
Country: China
ProdList: 21166
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Chemwill Asia Co.,Ltd.

Tel: 86-21-51086038
Fax: 86-21-51861608
Email: chemwill_asia@126.com
Country: CHINA
ProdList: 23912
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Chongqing Chemdad Co., Ltd

Tel: +86-023-6139-8061 +86-86-13650506873
Email: sales@chemdad.com
Country: China
ProdList: 39927
Advantage: 58

CONIER CHEM AND PHARMA LIMITED

Tel: +8618523575427
Email: sales@conier.com
Country: China
ProdList: 49979
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Shaanxi Dideu Newmaterial Co., Ltd.

Tel: 029-63373950 17392216152
Email: 1050@dideu.com
Country: China
ProdList: 9998
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Biosynth Biological Technology (Suzhou) Co Ltd

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DAYANG CHEM (HANGZHOU) CO.,LTD

Tel: +86-88938639 +86-17705817739
Email: info@dycnchem.com
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XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.

Tel: +8618950047208
Email: ellena@amitychem.com
Country: China
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16324-27-9, Fluorescent Brightener 251Related Search:

C.I. 482200 FLUORESCENT BRIGHTENER 28 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene Fluorescent brightener 85 2-(METHYLSULFONYL)ETHANOL 2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole Fluorescent Brightener 367 6-Aminocaproic acid Fluorescent Brightener 28 Aminoethoxyvinyl glycine hydrochloride Glycine Tris(hydroxymethyl)aminomethane Fluorescent Brightener 87 BRIGHTENERS Fluorescent whitening agent for plastic Fluorescent Brightener 251 AMINO ACIDS disodium 4,4'-bis[[6-anilino-4-(methylamino)-1,3,5-triazin-2-yl]amino]stilbene-2,2'-disulphonate

2,2'-(1,2-Ethenediyl)bis[5-[[4-[(2-hydroxyethyl)amino]-6-[[3-(sodiooxysulfonyl)phenyl]amino]-1,3,5-triazin-2-yl]amino]benzenesulfonic acid sodium] salt

4,4'-Bis[[4-[(2-hydroxyethyl)amino]-6-(m-sulfoanilino)-1,3,5-triazin-2-yl]amino]-2,2'-stilbenedisulfonic acid tetrasodium salt

fluorescent brightener 251

C.I. Fluorescent Brightener 114

c.i. 406233

tetrasodium 4,4'-bis[[4-[(2-hydroxyethyl)amino]-6-(m-sulphonatoanilino)-1,3,5-triazin-2-yl]amino]stilbene-2,2'-disulphonate

2,2'-(1,2-Ethenediyl)bis[5-[4-[(2-hydroxyethyl)amino]-6-[(m-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]benzenesulfonic acid, tetrasodium salt

Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-[[4-[(2-hydroxyethyl)amino]-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-, tetrasodium salt

wobital bbk

tetrasodium 5-[[4-(2-hydroxyethylamino)-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-2-[(E)-2-[4-[[4-(2-hydroxyethylamino)-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-2-sulfo-phenyl]ethenyl]benzenesulfonic acid

Fluorescent brightening agent 251

tetrasodium:5-[[4-(2-hydroxyethylamino)-6-(3-sulfonatoanilino)-1,3,5-triazin-2-yl]amino]-2-[(E)-2-[4-[[4-(2-hydroxyethylamino)-6-(3-sulfonatoanilino)-1,3,5-triazin-2-yl]amino]-2-sulfonatophenyl]ethenyl]benzenesulfonate

etrasodium,5-[[4-(2-hydroxyethylamino)-6-(3-sulfoanilino)-1,3,5-triazin-2-yl]amino]-2-[(E)-2-[4-[[4-(2-hydroxyethylamino)-6-(3-sulfoanilino)-1,3,5-triazin-2-yl]amino]-2-sulfophenyl]ethenyl]benzenesulfonicaci

Fluorescent Brightener 251 ISO 9001：2015 REACH

Benzenesulfonic acid, 2,2′-(1,2-ethenediyl)bis[5-[[4-[(2-hydroxyethyl)amino]-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-, sodium salt (1:4)

16324-27-9

C36H36N12Na4O14S44

C36H32N12Na4O14S4