Abstract
DURING the course of a series of oil investigations, an oil loaded with resin was distilled in vacuo (28 in. mercury) ; subsequent to distillation the residue was found to contain a substance having the chemical properties of abietic acid but which differed physically in spite of the fact that the nature of the resin present suggested abietic acid. The different physical properties were discovered after purification.
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Steele, J. Amer. Chem. Soc., 1333 (1922); 1935 (1934).
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CHRISTIE, J. An Isomeride of Abietic Acid. Nature 157, 439 (1946). https://doi.org/10.1038/157439a0
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DOI: https://doi.org/10.1038/157439a0
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