NEOSPIRAMYCIN I;NEOSPIRAMYCIN I STANDARD;4A-O-De(2,6-dideoxy-3-C-Methyl-α-L-ribo-hexopyranosyl)-9-O-[(2R,5S,6R)-5-(diMethylaMino)tetrahydro-6-Methyl-2H-pyran-2-yl]leucoMycin V;Neo Spiramycin I Solution, 100ppm;Leucomycin V, 4A-O-de(2,6-dideoxy-3-C-methyl-α-L-ribo-hexopyranosyl)-9-O-[(2R,5S,6R)-5-(dimethylamino)tetrahydro-6-methyl-2H-pyran-2-yl]-;Spiramycin EP Impurity A(Neospiramycin I);Neo Spiramycin I 100 μg/ml Methanol;Neospiramycin I in Acetonitrile