• Name

  Fluorescent Brightener 9

• EINECS 205-117-2
• CAS No. 133-66-4
• Article Data3
• CAS DataBase
• Density g/cm³
• Solubility 140mg/L at 20℃
• Melting Point
• Formula C44H36 N12 O6 S2 . 2 Na
• Boiling Point °Cat760mmHg
• Molecular Weight 936.942
• Flash Point °C
• Transport Information
• Appearance
• Safety Moderately toxic by intraperitoneal route. Slightly toxic by ingestion. When heated to decomposition it emits toxic vapors of NO_x and SO_x.
• Risk Codes
• Molecular Structure
• Hazard Symbols
• Synonyms 2,2'-Stilbenedisulfonicacid, 4,4'-bis[(4,6-dianilino-s-triazin-2-yl)amino]-, disodium salt(6CI,7CI,8CI); Benzenesulfonic acid,2,2'-(1,2-ethenediyl)bis[5-[[4,6-bis(phenylamino)-1,3,5-triazin-2-yl]amino]-,disodium salt (9CI); 4,4'-Bis(2,4-dianilino-1,3,5-triazin-6-ylamino)-2,2'-stilbenedisulfonic acid disodium salt;4,4'-Bis(2,4-dianilino-s-triazin-6-ylamino)stilbene-2,2'-disulfonic aciddisodium salt;4,4'-Bis(4,6-dianilino-s-triazin-2-ylamino)stilbene-2,2-disulfonic acid,disodium salt; 4,4'-Bis[(4,6-bisanilino-s-triazin-2-yl)amino]-2,2'-stilbenedisulfonicacid, disodium salt; Blankophor HZPA; Brightener BR 36; C.I. 40621; C.I.Fluorescent Brightener 9; Calcofluor White MR; Cellu-Brite; Disodium4,4'-bis(2,4-dianilino-s-triazin-6-ylamino)stilbene-2,2'-disulfonate; Disodium4,4'-bis[(2,4-dianilino-1,3,5-triazin-6-yl)amino]-2,2'-stilbenedisulfonate;Disodium4,4'-bis[(4,6-dianilino-s-triazin-2-yl)amino]-2,2'-stilbenedisulfonate;Fluorescent Brightener 9; Phorwite BA; Stralex DPA; Tinopal TAS
• PSA 280.68000
• LogP 11.09640

Synthetic route

6,6'-(ethene-1,2-diyl)bis(3-((4-chloro-6-(phenylamino)-1,3,5-triazin-2-yl)amino)benzenesulfonic acid)disodium salt

62-53-3

aniline

133-66-4

disodium 4,4'-bis[(4,6-dianilino-1,3,5-triazin-2-yl)amino]stilbene-2,2'-disulphonate

Conditions

Conditions	Yield
Stage #1: 6,6'-(ethene-1,2-diyl)bis(3-((4-chloro-6-(phenylamino)-1,3,5-triazin-2-yl)amino)benzenesulfonic acid)disodium salt; aniline In polyethyleneglycol-300 at 130℃; for 0.5h; Stage #2: With sodium hydroxide In water	23.4%

Fluorescent Brightener 9 Chemical Properties

Fluorescent Brightener 9 Toxicity Data With Reference

Fluorescent Brightener 9 Consensus Reports

Fluorescent Brightener 9 Safety Profile