ROSE BENGAL AR

Short Name: ROSE BENGAL

Other Names: 4,5,6,7-tetrachloro-2',4',5',7'-tetraiodofluorescein, Acid Red 94, Bengal Rose B sodium salt

C.I.No.45440It is commonly used in eye drops to stain damaged conjunctival and corneal cells and thereby identify damage to the eye.

Chemical Specifications

Appearance : Dark red to reddish brown colored powder

Identity (IR) : Passes test

Solubility (1 mg/mL in water) : Clear to slightly hazy red color solution

Absorption maxima (0.001% in water + 1 ml 1% Na2CO3 solution) : 544 - 550 nm

Absorptivity (A 1%/1cm; at λmax) : Min 860.0

Dye content : Min 85.0%

Loss on drying (at 110°C) : Max 10.0%