盐酸土霉素
盐酸土霉素 性质
熔点 | 180°C |
---|---|
比旋光度 | -188~-200°(D/20℃)(c=1,0.1mol/l HCl) (calculated on the dried basis) |
储存条件 | 0-6°C |
溶解度 | 易溶于水,微溶于乙醇(96%)。由于土霉素发生沉淀,水溶液在静置时变浑浊。 |
形态 | 结晶 |
颜色 | 粘黄色 |
PH值 | 2.0~3.0 (10g/l, 25℃) |
水溶解性 | >100 g/L |
敏感性 | Light Sensitive |
最大波长(λmax) | 360nm(H2O)(lit.) |
Merck | 14,6976 |
BRN | 3853107 |
稳定性 | 吸湿性 |
CAS 数据库 | 2058-46-0(CAS DataBase Reference) |
EPA化学物质信息 | Oxytetracycline hydrochloride (2058-46-0) |
盐酸土霉素 用途与合成方法
人口服后约可吸收口服量的30%~58%,单剂口服本品1g后,血药峰浓度(Cmax)为3.9mg/L, 6小时尚有2.1mg/L,进食后土霉素的吸收比空腹服用时约降低一半。本品吸收后广泛分布于肝、肾、肺等组织和体液,易渗入胸水、腹水,不易透过血-脊液脑屏障。本品表观分布容积(Vd)为0.9~1.9L/kg,蛋白结合率为20%~35%,肾功能正常者血消除半衰期(t1/2?)为6~10小时,无尿患者可达47~66小时。盐酸土霉素主要自肾小球滤过排出,给药后24小时内排出给药量的70%,其不吸收部分以原形药随粪便排泄。血液透析约可清除给药量的10%~15%。 盐酸土霉素可溶性粉主治:
1、由链球菌、巴氏杆菌、丹毒杆菌、肺炎球菌等引起的链球菌病、猪肺疫、萎缩性鼻炎、水肿病、母畜产后感染及各种呼吸道感染。
2、由原虫引起的畜禽血虫病(附红细胞体感染)、弓形体病、牛羊鞭虫病、 猪旋毛虫病等。
3、由支原体引起的猪气喘病(支原体肺炎)、禽霉形体肺炎(慢性呼吸道病)等。
4、用于水产的败血症、肠炎、烂尾烂鳃病、白头白嘴病、郑州弧菌病、鳗赤鳍病等。 Oxytetracycline hydrochloride 是一种属于四环素类的抗生素。Oxytetracycline hydrochloride 强力抑制革兰氏阴性和革兰氏阳性细菌。Oxytetracycline hydrochloride 是一种蛋白质合成抑制剂,可阻止 aminoacil-tRNA 与复杂的核糖体 RNA 结合。Oxytetracycline hydrochloride 还具有抗 HSV-1 的活性。
HSV-1
|
Bacterial
|
Human Endogenous Metabolite
|
Oxytetracycline is an important member of the bacterial aromatic polyketide family, which is a structurally diverse class of natural products. Oxytetracycline is synthesized by a type II polyketide synthase that generates the poly-beta-ketone backbone through successive decarboxylative condensation of malonyl-CoA extender units, followed by modifications by cyclases, oxygenases, transferases, and additional tailoring enzymes.
The effects of administration a therapeutic dose of Oxytetracycline (82.8 mg/kg of bw to 1 % bw/day) for 10 days are species specific. Oxytetracycline increases the relative liver weight in
Morone chrysops x M. saxatilis
, the enzymatic activity of CYP3A4 in Ictalurus punctatus, protein expression of CYP3A4 in Oreochromis niloticus and depleted the hepatic CYP3A4 in the latter.
For Oxytetracycline, the limits are 100 μg/kg in muscle and milk, 200 μg/kg in egg, 300 μg/kg in liver and 600 μg/kg in kidney. Oxytetracycline (OTC) is administered to fish as medicated feed at concentrations ranging from 35 to 75 mg a.i kg-1 biomass day-1 for 7-14 days.
安全信息
危险品标志 | Xn,Xi |
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危险类别码 | 63 |
安全说明 | 45-53-36/37/39 |
WGK Germany | 2 |
RTECS号 | QI8225000 |
F | 8-10-23 |
TSCA | Yes |
海关编码 | 29413000 |
毒性 | LD50 oral in mouse: 6696mg/kg |
盐酸土霉素 化学药品说明书
盐酸土霉素 价格(试剂级)
更新日期 | 产品编号 | 产品名称 | CAS号 | 包装 | 价格 |
---|---|---|---|---|---|
2024-11-11 | XW20584603 | 盐酸土霉素 | 2058-46-0 | 250G | 1126 |
2024-11-11 | XW20584602 | 盐酸土霉素 | 2058-46-0 | 50G | 323 |