Pipemidic Acid (hydrate)
(Synonyms: 吡哌酸三水合物) 目录号 : GC48684
An antibiotic
Cas No.:72571-82-5
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Pipemidic acid is an antibiotic and derivative of piromidic acid .1 It is active against clinical isolates of E. coli, P. mirabilis, P. inconstans, Shigella, Salmonella, Alcaligenes, and V. parahaemolyticus (MICs = 0.78-100 µg/ml), as well as drug-resistant clinical isolates of E. coli, P. mirabilis, Klebsiella, and Shigella (MICs = 1.56-6.25 µg/ml). Pipemidic acid is protective against systemic S. aureus, E. coli, K. pneumoniae, and P. aeruginosa infections in mice (ED50s = 237.5, 204.1, 28.6, and 99.5 mg/kg, respectively).2 It is also protective against P. aeruginosa-induced pulmonary and dermal infections (ED50s = 81.7 and 173.2 mg/kg, respectively), as well as E. coli, K. pneumoniae, and P. aeruginosa urinary bladder infections (ED50s = 4.8, 11.9, and 30.6 mg/kg, respectively), in mice.
1.Shimizu, Y., Takase, Y., Nakamura, S., et al.Pipemidic acid, a new antibacterial agent active against Pseudomonas aeruginosa: In vitro propertiesAntimicrob. Agents Chemother.8(2)132-138(1975) 2.Shimizu, M., Takdase, Y., Nakamura, S., et al.Pipemidic acid: Its activities against various experimental infectionsAntimicrob. Agents Chemother.9(4)569-574(1976)
| Cas No. | 72571-82-5 | SDF | |
| 别名 | 吡哌酸三水合物 | ||
| Canonical SMILES | O=C(C1=CN(CC)C2=NC(N3CCNCC3)=NC=C2C1=O)O.O.O.O | ||
| 分子式 | C14H17N5O3•3H2O | 分子量 | 357.4 |
| 溶解度 | DMF: 0.50 mg/ml,DMSO: 1 mg/ml,DMSO:PBS (pH 7.2) (1:4): 0.20 mg/ml | 储存条件 | -20°C |
| General tips | 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°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
 |
1 mg | 5 mg | 10 mg |
| 1 mM | 2.798 mL | 13.9899 mL | 27.9799 mL |
| 5 mM | 0.5596 mL | 2.798 mL | 5.596 mL |
| 10 mM | 0.2798 mL | 1.399 mL | 2.798 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Wide-ranging molecular mobilities of water in active pharmaceutical ingredient (API) hydrates as determined by NMR relaxation times
J Pharm Sci 2008 Oct;97(10):4258-68.PMID:18257032DOI:10.1002/jps.21294
In order to examine the possibility of determining the molecular mobility of hydration water in active pharmaceutical ingredient (API) hydrates by NMR relaxation measurement, spin-spin relaxation and spin-lattice relaxation were measured for the 11 API hydrates listed in the Japanese Pharmacopeia using pulsed (1)H-NMR. For hydration water that has relatively high mobility and shows Lorentzian decay, molecular mobility as determined by spin-spin relaxation time (T(2)) was correlated with ease of evaporation under both nonisothermal and isothermal conditions, as determined by DSC and water vapor sorption isotherm analysis, respectively. Thus, T(2) may be considered a useful parameter which indicates the molecular mobility of hydration water. In contrast, for hydration water that has low mobility and shows Gaussian decay, T(2) was found not to correlate with ease of evaporation under nonisothermal conditions, which suggests that in this case, the molecular mobility of hydration water was too low to be determined by T(2). A wide range of water mobilities was found among API hydrates, from low mobility that could not be evaluated by NMR relaxation time, such as that of the water molecules in Pipemidic Acid hydrate, to high mobility that could be evaluated by this method, such as that of the water molecules in ceftazidime hydrate.