生物活性
Erythromycin is a macrolide antibiotic that has an antimicrobial spectrum similar to or slightly wider than that of penicillin, and is often used for people who have an allergy to penicillins. For respiratory tract infections, it has better coverage of atypical organisms, including mycoplasma and Legionellosis. In a study of in-vitro and in-vivo susceptibility of Borrelia burgdorferito, erythromycin possessed low activity, having an ED50 of 122.2 (±51.9) mg/kg. For erythromycin, an IC50 of 1.5 μg/ml was observed, indicating a fourfold lower sensitivity of the organisms to this compound.
化学数据
| 分子量 | 733.93 |
| 分子式 | C37H67NO13 |
| CAS号 | 114-07-8 |
| 纯度 | >98% |
| 溶解性（25°C） | DMSO 100 mg/mL |
| 储存和运输条件 | 固体粉末： -20°C 冷藏长期储存
常温运输及临时存放 |
不同实验动物依据体表面积的等效剂量转换表（数据来源于FDA指南）
| 小鼠 | 大鼠 | 兔 | 豚鼠 | 仓鼠 | 狗 |
| 重量 (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
| 体表面积 (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
| Km系数 | 3 | 6 | 12 | 8 | 5 | 20 |
| 动物 A (mg/kg) = 动物 B (mg/kg) × | 动物 B的Km系数 |
| 动物 A的Km系数 |
例如，依据体表面积折算法，将化合物用于小鼠的剂量20 mg/kg 换算成大鼠的剂量，需要将20 mg/kg 乘以小鼠的Km系数（3），再除以大鼠的Km系数（6），得到化合物用于大鼠的等效剂量为10 mg/kg。
储备液配制
以下数据基于产品分子量，对于特殊产品，请参照COA中的储备液配制条件和说明进行操作。
| Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
|---|
| 1 mM | 1.3625 mL | 6.8126 mL | 13.6253 mL |
| 5 mM | 0.2725 mL | 1.3625 mL | 2.7251 mL |
| 10 mM | 0.1363 mL | 0.6813 mL | 1.3625 mL |
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