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Compound: Fluoro-Ruby

Classification: Tetramethylrhodamine dextran-amine, 10,000 molecular weight

Appearance: Pink to crimson colored powder

Solubility: Highly soluble in aqueous solutions

Purity: Thin layer chromatography using cellulose plates and a solvent system of acetonitrile and water (6:4) revealed no detectable free TRITC dye.

Substitution: 1 molecule TRITC per molecule of dextran-amine

Average Molecular Weight: 10,500

Excitation Peak: 540 nm

Emission peak: 600 nm

Filter system for visualizing: Standard TRITC filter

Storage: The dry powder can be stored at room temperature or refrigerated. Solutions should be refrigerated when not in use.

Toxicity: Although the compound appears to be of low toxicity, it has not been extensively evaluated and therefore routine laboratory caution should be exercised. Not approved for human consumption.

Schmued, L., Kyriakidis, K., & Heimer, L., In vivo anterograde and retrograde axonal transport of the fluorescent rhodamine-dextran-amine, Fluoro-Ruby, within the CNS. Brain Res, 526 (1990) 127-134.