Agent Name

Tinopal CBS

CAS Number

27344-41-8

Formula

C28-H20-O6-S2.2Na

Major Category

Dyes

Synonyms

Benzenesulfonic acid, 2,2'-((1,1'-biphenyl)-4,4'-diyldi-2,1-ethenediyl)bis-, disodium salt; Disodium 4,4'-bis(2-sulfostyryl)biphenyl; Disodium 4,4'-bis-((4-anilino-6-(N-methyl-2-hydroxyethylamino)-1,3,5-triazin-2-yl)amino)stilbene-2,2'-disulfonate; FBA 351; Stilbene 3; Tinopal CBS-X; Benzenesulfonic acid, 2,2'-((1,1'-biphenyl)-4,4'-diyldi-2,1-ethenediyl)bis-, sodium salt (1:2); Benzenesulfonic acid, 2,2'-(4,4'-biphenylylenedivinylene)di-, disodium salt; Disodium 2,2'-((1,1'-biphenyl)-4,4'-diyldivinylene)bis(benzenesulphonate); [ChemIDplus] Disodium 4',4''-bi(stilbene-2,2'''-disulfonate); DSBP; FAT 65029/G; Stilbene 420; Tinopal CBX; Tinopal SK; Uvitex NFW; [RTECS]

Category

Carbocyanine Dyes

Description

Yellow odorless powder; [Exciton MSDS] 29-31% Aqueous solution: Yellow odorless slurry; [Ciba MSDS]

Sources/Uses

Used as an optical brightener for detergents; [Ciba MSDS] Permitted for use as an inert ingredient in non-food pesticide products; [EPA]

Comments

Causes no skin and serious eye irritation in rabbits (classified by the EC as "risk of serious damage to eyes); Not a skin sensitizer in guinea pigs; [IUCLID] Causes somnolence and dyspnea in inhalation lethal-concentration studies of rats; [RTECS] May cause transient eye irritation; Not a skin irritant or sensitizer; [Exciton MSDS] 29-31% Aqueous solution: An eye irritant; [Ciba MSDS]

Exposure Assessment
Lethal Concentration

LC50 (rat) = 3,660 mg/m3/4hr

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