FastSaying
Green, red, and mixed shades of haemins are known. If magnesium is replaced by iron in chlorophyll, green haemins are obtained. Their colour is due to a strong band in the red which is already recognized in chlorophyll.
Otto Heinrich Warburg
Band
Colour
Due
Green
Iron
Known
Mixed
Obtained
Recognized
Red
Replaced
Shades
Strong
Which
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