different between spermine vs homospermine

English

From Ancient Greek ?????? (spérma, “semen”) +? -ine.

spermine (countable and uncountable, plural spermines)

(organic chemistry) A polyamine, N,N'-bis(3-aminopropyl) butane-1,4-diamine, originally extracted from sperm, that is involved in cellular metabolism

spermine f

homo- (“extra methylene group”) +? spermine

homospermine (plural homospermines)

(organic chemistry) An analogue of spermine having an extra methylene group between the middle two nitrogen atoms; and derivative of this compound

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