Respitory proteids : researches in biological chemistry / A.B. Griffiths.

  • Arthur Bower Griffiths
Date:
1897
Catalogue details

Licence: Public Domain Mark

Credit: Respitory proteids : researches in biological chemistry / A.B. Griffiths. Source: Wellcome Collection.

    97/158 (page 85)
    soluble in alcohol, ether, chloroform, benzene, aniline and carbon disulphide. Its solutions have a green colour with a bluish tinge, and its spectrum is given in Fig. 3. By the action of acids on alkachlorophyll, phyllotaonin is formed thus : c52h57n707 + h2o = c40hj0n6o6 + c12h19no2 [alkachlorophyll] [phyllotaonin] [x] Phyllotaonin. Phyllotaonin ('C40H10N6O6) is obtained by the action of alkalies on phyllocyanin, and by the action of acids on alkachlorophyll. It is obtained in flattened crystals of a fine peacock or steel- blue colour. Phyllotaonin melts at 184° C. and on ignition leaves no ash. It is soluble in boiling alcohol and ether; and its solutions have the same colour and show the same absorption-bands as solutions of phyllocyanin. It is also soluble in benzene, carbon disulphide, chloroform and aniline, but insoluble in ligroin. Schunck has obtained certain compounds of phyllotaonin, viz. : methylphyllotaonin, ethyl- phyllotaonin, and acetylphyllotaonin. When ethylphyllotaonin is distilled with zinc dust, an oil is obtained which answers to the tests of pyrrol.