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Fluorescent Brightener 28

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Fluorescent Brightener 28 Basic information

Product Name:
Fluorescent Brightener 28
Synonyms:
  • (95508-20-6) fluorescent brightener 28
  • Optical brightener BA (C.I.28/113)
  • Benzenesulfonicacid,2,2’-(1,2-ethenediyl)bis[5-[4-[bis(2-hydroxyethyl)amino]-6-(phenylamino)-1,3,5-triazin-2-yl]amino]-,disodiumsalt
  • blancophorms31
  • blancophorms72
  • blancophorrg96fs
  • c.i.fluorescentbrightener28
  • c.i.fluorescentbrighteningagent28,disodiumsalt
CAS:
4193-55-9
MF:
C40H45N12NaO10S2
MW:
940.98
EINECS:
224-073-5
Product Categories:
  • Dye stuff
  • Organics
Mol File:
4193-55-9.mol
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Fluorescent Brightener 28 Chemical Properties

Melting point:
290°C
Density 
1.37[at 20℃]
vapor pressure 
0-0Pa at 25℃
storage temp. 
Hygroscopic, Room Temperature, Under inert atmosphere
solubility 
DMSO (Slightly, Sonicated), Methanol (Slightly, Heated, Sonicated)
form 
Solid
color 
Light Yellow to Yellow
Water Solubility 
10-48.2g/L at 20-26℃
Stability:
Hygroscopic
LogP
-3.5-0.95 at 25℃
EPA Substance Registry System
Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-[[4-[bis(2-hydroxyethyl)amino]-6-(phenylamino)-1,3,5-triazin-2-yl]amino]-, sodium salt (1:2) (4193-55-9)
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Safety Information

Toxicity
LD50 orl-rat: 14,530 mg/kg MVCRB3 2,193,73
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Fluorescent Brightener 28 Usage And Synthesis

Uses

Fluorescent brightener 28 (CAS# 4193-55-9) is a fluorescent whitening agent used for textiles.

Definition

ChEBI: Calcofluor White is an organic sodium salt. It contains a 4,4'-bis({4-anilino-6-[bis(2-hydroxyethyl)amino]-1,3,5-triazin-2-yl}amino)stilbene-2,2'-disulfonate.

Safety Profile

Poison by ingestion andintraperitoneal routes. Moderately toxic by subcutaneousroute. An eye irritant. Whenheated to decomposition it emits very toxic fumes ofNOx, Na2O, and SOx.

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