On a New Porphyrin


CHLOROCRUORIN is the name given in 1867 by Sir Ray Lankester to a pigment, red in concentrated solution, green dilute, dissolved in the blood plasma of Serpulid, Sabellid and Chlorhæmid polychæte worms. It has been shown (Fox, Proc. Roy. Soc., in the press) that the chlorocruorin molecule is constructed on the same model as that of hæmoglobin. Oxy- and reduced chlorocruorin resemble oxy- and reduced hæmoglobin spectroscopically, with the corresponding bands moved to the red in the case of chlorocruorin. In a like manner, the derivatives of chlorocruorin which correspond to hæmochromogen, hæmatin and hæmatoporphyrin resemble these substances, with the same shift of the bands to the red.

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FOX, H. On a New Porphyrin. Nature 117, 49–50 (1926). https://doi.org/10.1038/117049a0

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