Agent Name

Phloxine B

CAS Number

18472-87-2

Formula

C20-H4-Br4-Cl4-O5.2Na

Major Category

Dyes

Synonyms

2',4',5',7'-Tetrabromo-4,5,6,7-tetrachloro-3',6'-dihydroxyspiro(i- sobenzofuran-1(3H),9'-(9H)xanthen)-3-one, disodium salt; Acid Red 92; CI 45410; D & C Red No. 28; 11969 Red; 3427 Veri Pur Pink; Acid Red 92; Aizen Acid Phloxine PB; C.I. 45410; C.I. Acid Red 92; Cyanosin; Cyanosin (acid dye); Cyanosin B; Cyanosine; D and C Red No. 28; Daiwa Red 45; Eosin Blue; Eosine Blue; Eosine bluish; Food Dye Red No. 104; Food Red 104; Food Red No. 104; Japan Red 104; Japan Red 104-1; Orient Water Pink 2; Phloxin B; Phloxine P; Red 104; Red No. 104; Red No. 104-1; Water Pink 2; 3,4,5,6-Tetrachloro-2-(1,4,5,8-tetrabromo-6-hydroxy-3-oxoxanthen-9-yl)benzoic acid sodium; Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 2',4',5',7'-tetrabromo-4,5,6,7-tetrachloro-3',6'-dihydroxy-, disodium salt; Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 2',4',5',7'-tetrabromo-4,5,6,7-tetrachloro-3',6'-dihydroxy-, sodium salt (1:2); [ChemIDplus] 2',4',5',7'-Tetrabromo-4,5,6,7-tetrachlorofluorescein disodium salt; [Merck Index]

Category

Di- and Triaryl Dyes

Description

Brick red to brown solid; [Merck Index] Dark red powder; [Sigma-Aldrich MSDS]

Sources/Uses

Used as a histological and bacterial stain, and colorant for cosmetics, drugs, inks, lacquers, wool, nylon, jute, leather, silk, and acid dyeable acrylics; [Merck Index] Used in hair dye formulations; [SCCS (Scientific Committee on Consumer Safety), Opinion on Acid Red 92, 27 March 2012] Permitted for use as an inert ingredient in non-food pesticide products; [EPA]

Comments

Causes no skin and mild to moderate eye irritation in rabbits; Not a skin sensitizer in a local lymph node assay (LLNA) of mice; Mild maternal toxicity but no embryotoxicity or teratogenicity observed in rats at 250 mg/kg/day; [SCCS (Scientific Committee on Consumer Safety), Opinion on Acid Red 92, 27 March 2012] May cause irritation; [Sigma-Aldrich MSDS] See "Rose Bengal."

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