Form

Powder

Appearance

Whitecrystallinepowder

Source

Semi-synthetic

ImpurityProfile

ImpurityA|(3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-4-[(2,6-dideoxy-3-C-methyl-3-O-methyl-汐-l-ribo-hexopyranosyl)oxy]-14-ethyl-7,12,13-trihydroxy-3,5,7,9,11,13-hexamethyl-6-[[3,4,6-trideoxy-3-(dimethylamino)-汕-d-xylo-hexopyranosyl]oxy]oxacyclotetradecane-2,10-dione(erythromycinA)|7540-22-9|C₃₇H₆₇NO₁₃|733.93|ImpurityB|3-O-de(2,6-dideoxy-3-C-methyl-3-O-methyl-汐-l-ribo-hexopyranosyl)erythromycin9-(E)-[O-[(2-methoxyethoxy)methyl]oxime]|214902-82-6|C₃₃H₆₂N₂O₁₂|678.85|ImpurityC|erythromycin9-(E)-oxime|13127-18-9|C₃₇H₆₈N₂O₁₃|748.94|ImpurityD|erythromycin9-(Z)-[O-[(2-methoxyethoxy)methyl]oxime]||C₄₁H₇₆N₂O₁₅|837|ImpurityE|3∩∩-O-demethylerythromycin9-(E)-[O-[(2-methoxyethoxy)methyl]oxime]||C₄₀H₇₄N₂O₁₅|823.02|ImpurityF|3∩-N-demethylerythromycin9-(E)-[O-[(2-methoxyethoxy)methyl]oxime]|118267-18-8|C₄₀H₇₄N₂O₁₅|823.02|ImpurityG|erythromycin9-(E)-[O-[[(2-methoxyethoxy)methoxy]methyl]oxime]|425365-64-6|C₄₂H₇₈N₂O₁₆|867.07|ImpurityH|12-deoxyerythromycin9-(E)-[O-[(2-methoxyethoxy)methyl]oxime]|107749-06-4|C₄₁H₇₆N₂O₁₄|821|ImpurityI|2∩-O-[(2-methoxyethoxy)methyl]erythromycin9-(E)-[O-[(2-methoxyethoxy)methyl]oxime]||C₄₅H₈₅N₂O₁₇|926|ImpurityJ|erythromycin9-(E)-[O-[(2-chloroethoxy)methyl]oxime]|134834-12-1|C₄₀H₇₃ClN₂O₁₄|841.5|ImpurityK|erythromycin9-(E)-[O-[[2-(hydroxymethoxy)ethoxy]methyl]oxime]||C₄₁H₇₆N₂O₁₆|837.03|

WaterContent(KarlFisher)

≤3.0%

MeltingPoint

111-118°C

OpticalRotation

-93.0°to-96.0°

Assay

(OnDriedBasis):97.0-101.0%