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A New Natural Colouring Matter of the Naphthalene Group

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Abstract

S. SIDDIQUI has recently described1 the isolation of three new colouring matters, occurring together as a reddish dust on the leaves of Didymocarpus pedicellata. In view of this publication, we now place on record the preliminary results of work in progress on the constitution of a colouring matter different from, but perhaps related to, Siddiqui's, and occurring as a deposit on the leaves and inflorescences of Streptocarpus Dunnii Mast., a member of a genus closely related to Didymocarpus2.

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References

  1. J. Indian Chem. Soc., 14, 703 (1937).

  2. Cf. Robinson and Robinson, Biochem. J., 28, 1718 (1934).

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  3. J. Amer. Chem. Soc., 49, 857 (1927).

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Authors and Affiliations

  1. John Innes Horticultural Institution, Merton, London, S.W.20

    J. R. PRICE

  2. Dyson Perrins Laboratory, Oxford

    R. ROBINSON

Authors
  1. J. R. PRICE
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  2. R. ROBINSON
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PRICE, J., ROBINSON, R. A New Natural Colouring Matter of the Naphthalene Group. Nature 142, 147–148 (1938). https://doi.org/10.1038/142147b0

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