Fluorescent brightener 28 CAS# 4404-43-7

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Fluorescent brightener 28 CAS# 4404-43-7

Fluorescent brightener 28 is a light yellow powder, odorless, soluble in alkanes, fats, mineral oils, paraffin and most organic solvents. Its spectral maximum absorption value is 375mm (in ethanol), and its maximum emission wavelength is 435nm (in ethanol).
Fluorescent brightener 28 is mainly used for whitening thermoplastics such as PVC, PS, PE, PP, ABS, as well as polyester fibers, paints, inks, coatings, etc. When storing, it should be stored in a cool place, the container should be kept tightly closed, and stored in a dry and ventilated place. Care should be taken to avoid contact with strong oxidants.

Category Dyestuffs And Pigments Tag Dyestuffs And Pigments

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Fluorescent brightener 28 CAS# 4404-43-7

Product Name:	FLUORESCENT BRIGHTENER 28
Synonyms:	CALCOFLUOR WHITE ST;CI 40622;Fluorescent Brightener28,Calcofluor White M2R, TinopalUNPA-GX;V56;Optiblanc NL;2.5-Bis(5-tertbutyl-2-benzoxazlyl)phiophene;5-triazin-2-yl]amino]–6-(phenylamino)-3;c.i.fluorescentbrighteningagent28
CAS:	4404-43-7
MF:	C40H44N12O10S2
MW:	916.98
EINECS:	224-548-7
Product Categories:	INORGANIC & ORGANIC CHEMICALS;Organics;Dye stuff
Mol File:	4404-43-7.mol

FLUORESCENT BRIGHTENER 28 Chemical Properties

Melting point	290°C
Boiling point	1311℃[at 101 325 Pa]
density	1.598±0.06 g/cm3(Predicted)
vapor pressure	0Pa at 25℃
storage temp.	Store at RT.
solubility	DMSO (Slightly, Sonicated), Methanol (Slightly, Heated, Sonicated)
pka	-1.28±0.50(Predicted)
form	Solid
color	Light Yellow to Yellow
Water Solubility	80g/L at 25℃
Stability:	Stable under recommended storage conditions., Stable Under Recommended Storage C
LogP	-3.5
EPA Substance Registry System	C.I. Fluorescent Brightening Agent 28 (4404-43-7)

Safety Information

Hazard Codes	Xi
Risk Statements	36
Safety Statements	26
WGK Germany	3

MSDS Information

Provider	Language
SigmaAldrich	English

FLUORESCENT BRIGHTENER 28 Usage And Synthesis

Uses	Fluorescent Brightener 28 (Technical Grade) is used for the staining of fungi and as a viability stain. Dyes and metabolites.
Definition	ChEBI: An organosulfonic acid comprising stilbene having 4-anilino-6-[bis(2-hydroxyethyl)amino]-1,3,5-triazin-2-yl}amino groups at the 4 and 4′-positions and sulfo groups at the 2- and 2′-positions.

FLUORESCENT BRIGHTENER 28 Preparation Products And Raw materials

Raw materials	Sodium carbonate–>Aniline–>Cyanuric chloride–>Monoethanolamine–>4,4′-Diamino-2,2′-stilbenedisulfonic acid
Preparation Products	Master-batches

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