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Oxford University Chemical and Other Safety Information. August 2003. http://physchem.ox.ac.uk/MSDS/AC/acid_blue_9.html Downloaded September, 2004 Safety (MSDS) data for acid blue 9 -----------------------------------------------------------------------General Synonyms: disodium bis[4-(N-ethyl-N-3sulfonatophenylmethyl)aminophenyl]phenylmethylium, neptune blue WF, acid blue 9 disodium salt Use: permitted food dye Molecular formula: C37H34N2Na2 O9 S3 CAS No: 3844-45-9 EINECS No: 223-339-8 Physical data Appearance: reddish-violet powder or granules Melting point: Boiling point: Vapour density: Vapour pressure: Density (g cm-3): Flash point: Explosion limits: Autoignition temperature: Stability Stable. Incompatible with strong oxidizing agents. Toxicology May act as a skin, respiratory or eye irritant. Toxicity data (The meaning of any toxicological abbreviations which appear in this section is given here.) SCN-MUS LD50 4600 mg kg-1 Transport information Non-hazardous for air, sea and road freight. Personal protection Safety glasses. [Return to Physical & Theoretical Chemistry Lab. Safety home page.] ------------------------------------------------------------------------ This information was last updated on August 19, 2003. We have tried to make it as accurate and useful as possible, but can take no responsibility for its use, misuse, or accuracy. We have not verified this information, and cannot guarantee that it is up-todate. ------------------------------------------------------------------------