In the context of chemistry, a donor is a molecule or atom that can provide electrons to another molecule, making it a source of electrons.
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C27H25BN2O3
β-1-deoxy-1-C-(phenylthio)-2,3,4,5-tetra-O-acetyl-D-mannopyranose
methyl 6-deoxy-α/β-D-galactopyranoside
(R)-(+)-3-phenyl-4-pentenoic acid ethyl ester
methyl 3-O-(3,4,6-tri-O-acetyl-2-O-benzyl-α-D-glycopyranosyl)-2,4,6-tri-O-benzyl-α-D-glucopyranoside
2,3,4,6-tetra-O-benzyl-α-L-mannopyranose 1-O-trichloroacetimidate
2-benzyl-2-trimethylsilyl-1,3-dithiane
12,13-bis-bromomethyl-10,15-dihydro-9,16-dioxa-benzo[5,6]cycloocta[1,2-l]phenanthrene
methyl 3,4-O-isopropylidene-2,6-di-O-(4-methoxybenzyl)-1-thio-β-D-galactopyranoside
