Chemical name: Erythromycin 9-[O-[(2-methoxyethoxy)methyl]oxime]
CAS No. : 80214-83-1
Molecular formula:  C₄₁H₇₆N₂O₁₅
Molecular weight: 837. 03
Properties: white or off-white crystalline powder；smellnessless，a little bitter，little humidy.
Specific rotatory: -82⁰～-87⁰
Related substance:comply
Water:≤3.0%
Risidual on ignition:≤0.1%
Heavy metal:≤0.001%
Assay:≥940u