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June 16, 1923


Author Affiliations

Pittsburgh. Assistant Director, Mellon Institute of Industrial Research, University of Pittsburgh

JAMA. 1923;80(24):1791. doi:10.1001/jama.1923.02640510047031

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To the Editor:  —In the editorial on the Wassermann tuberculosis reaction (The Journal, May 19, p. 1456), "tetralin" is stated to be "a naphthalene with four molecules of water of hydration.""Tetralin," or tetrahydronaphthalene, is produced by the hydrogenation of naphthalene; that is, it is made by the catalytic reduction of naphthalene. It possesses the structural formula:I hope that this information will make clear that "tetralin" is not a naphthalene hydrate.

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