Erythromycin USP31/EP6.0/BP2005 We specialized in produce of Erythromycin. Excellent quality and good price.
Erythromycin USP31/EP6.0/BP2005
Synonyms: (-)-Erythromycin
Molecular Formula: C37H67NO13
Molecular Weight: 733.93
Melting point: 138-140 ºC
Alpha: -74.5 º (c=2, ethanol)
Test Items | Specification |
Characters | White or almost white crystalline or powder |
Identification | |
1.HPLC | Positive Reaction |
2.Infrared spectroscopy | Positive Reaction |
Specific optical rotation | -71o~-73o |
PH | 8.0~10.5 |
Water | NMT6.0% |
Residue | NMT0.2% |
Biological potency | potency is not less than 920u/mg on dried substance |
(HPLC)Composition | |
AErythromycin | NMT88.0% |
Erythromycin B,C and related substances | Positive Reaction |
Thiocyanate | Positive Reaction |
erythromycin