Agent Name

Rose Bengal

CAS Number

632-68-8

Formula

C20-H4-Cl4-I4-O5.2K

Major Category

Dyes

Synonyms

Bengal Rose; C. I. 45440; C.I. Acid Red 94; Red No. 105; Food Red dye 105; Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodo-, dipotassium salt; Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodo-, potassium salt (1:2); [ChemIDplus] 4,5,6,7-Tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodospiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one dipotassium salt; 4,5,6,7-Tetrachloro-2',4',5',7'-tetraiodofluorescein dipotassium salt; [Merck Index]

Category

Di- and Triaryl Dyes

Description

Brownish-red odorless powder; [EMD MSDS]

Sources/Uses

Used as dye, biological stain, and diagnostic stain after corneal trauma; [Merck Index]

Comments

Causes change in liver and thyroid weights in 19-week oral studies of rats; [RTECS] A moderate irritant; Harmful by ingestion; [EMD MSDS]

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