|mp||168 °C (dec.) (lit.)|
|cation traces||heavy metals: ≤0.002%|
|absorbance ratio||A ≥1.55|
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Dithizone (Diphenylthiocarbazone) is used as chelating agent for zinc. It is widely used for the liquid-liquid and solid phase extraction of various metals since it forms stable complexes with the metals.
Rose bengal is a stain with a pink color. Its disodium salt form is commonly available in eye drops as a diagnostic agent when there is suspected damage to conjunctival and corneal cells. It is also used in laboratory settings, including the preparation of Foraminifera for microscopic analysis and suppression of bacterial growth in several microbiological media. The clinical applications of rose bengal as injectable formulation under the name PV-10 in melanoma, breast cancer and skin conditions such as eczema and psoriasis are being investigated in clinical trials.
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