| 常用名 | 盐酸莫西沙星 | CAS号 | 186826-86-8 |
|---|---|---|---|
| 价格 | ¥需询单/1g | 纯度 | 98.0% |
| 备货期 | 1天 | 库存 | 现货 |
| 产品详情(用途,包装等)
用途: Moxifloxacin (Hydrochloride) is a synthetic fluoroquinolone antibiotic agent.Target: AntibacterialMoxifloxacin is an extended-spectrum fluoroquinolone which has improved coverage against gram-positive cocci and atypical pathogens compared with older fluoroquinolone agents, while retaining good activity against gram-negative bacteria. The antibacterial spectrum of moxifloxacin includes all major upper and lower respiratory tract pathogens; it is one of the most active fluoroquinolones against pneumococci, including penicillin- and macrolide-resistant strains [1]. Moxifloxacin has limited phototoxic potential. In clinical trials, moxifloxacin had clinical success rates of 88-97% and bacteriologic eradication rates of 90-97%. Moxifloxacin is a safe and effective antimicrobial that will be useful for treating acute sinusitis, acute bacterial exacerbations of chronic bronchitis, and community-acquired pneumonia [2]. Moxifloxacin possibly stimulates lipid peroxidation and enhances phagocytosis, as depicted by MDA production and survival prolongation, without being toxic as depicted by white blood cell count [3]. Clinical indications: Abdominal abscess; Acute bronchitis; Acute sinusitis; Bacterial infectionToxicity: Symptoms of overdose include CNS and gastrointestinal effects such as decreased activity, somnolence, tremor, convulsions, vomiting, and diarrhea. The minimal lethal intravenous dose in mice and rats is 100 mg/kg. 作用: 致癌、致突变 虽然有关莫西沙星致癌作用的常规长期研究尚未完成,但该药进行了基因毒性体内和体外试验。此外,在大鼠身上进行了对于人类的致癌作用加速试验(诱发和促进测定)。5株Ames试验中4次为阴性,中国苍鼠卵巢HPRT的突变试验和大鼠原发肝细胞的UDS试验也均为阴性,而其它喹诺酮类TA102的Ames试验为阳性。体外试验显示大剂量(33mg/ml)的其它喹诺酮类药物可致中国苍鼠的V79细胞出现染色体异常,然而,小鼠体内试验核仁测定为阴性结果。此外,体内试验测定其对小鼠的显性致死测定为阴性。总之,体内试验的结果充分反映了其体内的基因毒性。在大鼠的诱导和促进测定中未发现莫西沙星致癌的证据。 光毒性 莫西沙星对光稳定且潜在光毒性很低。体外试验和动物试验显示莫西沙星的光毒性较其它喹诺酮类药物小。让小鼠口服一些喹诺酮类药物并同时照射紫外线,显示出可增加紫外线的光致癌作用。 莫西沙星的光致癌作用的研究尚未进行,在志愿者的Ⅰ期试验中证实莫西沙星的光毒性较小。 心电图 高浓度的莫西沙星对延迟调整心脏钾离子流有抑制作用,因此导致QT间期延长。给狗口服大于90mg 莫西沙星进行毒理研究,导致血药浓度大于16mg/L,引起QT间期延长,但未发现有心律失常出现。但是累积静脉给药高于50倍人的给药剂量(>300mg ),可导致血药浓度≥200mg/L(高于静脉给药治疗浓度的 30倍),并观察到可逆转、非严重的室性心律失常。 关节毒性 众所周知,喹诺酮类可以造成未成年试验动物的承重关节软骨的病变。可造成幼年狗的关节毒性的最小口服莫西沙星剂量是推荐最大治疗剂量(400mg/50kg人体重)的4倍,其血药浓度为推荐治疗剂量时血药浓度的2-3倍。 生殖毒性 用大鼠、兔和猴子进行的生殖研究表明,莫西沙星可以通过胎盘。对大鼠(os和iv)和猴子(os)的试验表明,给予莫西沙星后没有致畸作用和对生殖力的影响证据。兔静脉给药200mg 可观察到骨骼畸形。该研究结果与已知的喹诺酮对骨骼发育的影响一致。血浆药物浓度在治疗浓度范围内,猴子和兔的流产发生率增多。在大鼠身上,当口服剂量为按千克体重计算使血药浓度在人治疗剂量范围内所推荐的最大药物剂量的63倍时,会出现幼鼠体重减少、出生前体重减轻增加、轻度延长孕期和增加一些雌性和雄性大鼠的生殖能力等现象。 物理化学性质: CAS号:186826-86-8 常用中文名:盐酸莫西沙星 常用英文名:Moxifloxacin HCl 分子式:C21H25ClFN3O4 分子量:437.892 密度:N/A 沸点:636.4ºC at 760 mmHg 熔点:N/A 闪点:338.7ºC 储存条件:2-8°C |