From a French oil of parsley Thorns4) isolated a substance C18H1804, which he recognized as a phenol ether characterized by the above formula, and for which he records the following constants:

M. p. 25°; d25o 1,087; nD25o 1,51462.

When oxidized with potassium permanganate, a good yield of tetramethoxy benzoic acid, C6H(OCH3)4COOH results, which crystallizes in long needles and melts at 87°.5)

In conclusion, several compounds may here be mentioned that are ketones as well as phenols. They are diosphenol and phloracetophenone dimethyl ether.

1) Ciamician and Silber, Berl. Berichte 29 (1896), 1800.

2) Arch, der Pharm. 242 (1904), 344.

3) Ciamician and Silber, loc. eft.

4) Berl. Berichte 41 (1908), 2761.

5) Bignami and Testoni, Gazz. chim. ital. 30 (1900), I. 240; Report of Schimmel & Co. October 1900, 48.