Omadacycline (PTK 0796) tosylate, a first-in-class orally active aminomethylcyclineantibacterial, is a member of thetetracyclineclass ofantibiotics. Omadacycline tosylate acts through the inhibition ofbacterialprotein synthesisby binding to the 30S ribosomal subunit. Omadacycline tosylate possesses broad-spectrum antibacterial activity against aerobic and anaerobic Gram-positive and Gram-negative bacteria, as well as atypical bacteria. Omadacycline tosylate can be used for the research of acutebacterialskin and skin-structure infections, community-acquired pneumonia, and urinary tract infections^[1][2][3][4].

Omadacycline displays activity against methicillin-resistantStaphylococcus aureus(MRSA), vancomycin-resistantEnterococcus(VRE), beta-hemolytic streptococci, penicillin-resistantStreptococcus pneumonia(PRSP) andHaemophilus influenzae (H. influenzae), with MIC₉₀s of 1.0, 0.25, 0.5, 0.25 and 2.0 μg/mL respectively^[2].
Omadacycline is active against strains expressing tetracycline and other antibiotics resistance by ribosomal protection and active tetracycline efflux^[2].

Omadacycline (0.11-18 mg/kg; a single i.v.) exhibits efficacy againstStreptococcus pneumonia,Escherichia coli, andStaphylococcus aureusin mice systemic infection model, with ED₅₀s ranging from 0.30 mg/kg to 3.39 mg/kg^[2].

728.85

Solid

C₃₆H₄₈N₄O₁₀S

1075240-43-5

奥马环素；奥玛环素甲磺酸盐；甲苯磺酸奥玛环素

Room temperature in continental US; may vary elsewhere.

4°C, sealed storage, away from moisture and light

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)

H₂O : 12.5 mg/mL(17.15 mM;Need ultrasonic)

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80℃, 6 months; -20℃, 1 month (sealed storage, away from moisture and light)。-80℃ 储存时，请在 6 个月内使用，-20℃ 储存时，请在 1 个月内使用。

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照In Vitro方式配制澄清的储备液，再依次添加助溶剂：

——为保证实验结果的可靠性，澄清的储备液可以根据储存条件，适当保存；体内实验的工作液，建议您现用现配，当天使用； 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比；如在配制过程中出现沉淀、析出现象，可以通过加热和/或超声的方式助溶

• 1.

  请依序添加每种溶剂： PBS

  Solubility: 50 mg/mL (68.60 mM); Clear solution; Need ultrasonic