Emeguisin A
目录号 : GC48546
A fungal metabolite
Cas No.:117032-54-9
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >95.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Emeguisin A is a depsidone fungal metabolite originally isolated from E. unguis.1 It is active against the bacteria S. aureus and methicillin-resistant S. aureus (MRSA; MIC = 0.5 µg/ml for both), the fungus C. neoformans (MIC = 0.5 µg/ml), and the protozoan P. falciparum (IC50 = 2.2 µM).2
1.Kawahara, N., Nozawa, K., Nakajima, S., et al.Isolation and structures of novel fungal depsidones, emeguisins A, B, and C, from Emericella unguisJ. Chem. Soc., Perkin Trans. 12611-2614(1988) 2.Klaiklay, S., Rukachaisirikul, V., Aungphao, W., et al.Depsidone and phthalide derivatives from the soil-derived fungus Aspergillus unguis PSU-RSPG199Tetrahedron Lett.57(39)4348-4351(2016)
| Cas No. | 117032-54-9 | SDF | |
| Canonical SMILES | O=C1OC2=C(C(C(C)=CC)=C(C(O)=C2C)Cl)OC3=C1C(C(C)=CC)=CC(O)=C3C | ||
| 分子式 | C23H23ClO5 | 分子量 | 414.9 |
| 溶解度 | 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 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.4102 mL | 12.0511 mL | 24.1022 mL |
| 5 mM | 0.482 mL | 2.4102 mL | 4.8204 mL |
| 10 mM | 0.241 mL | 1.2051 mL | 2.4102 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。
Antibacterial and Antifungal Polyketides from the Fungus Aspergillus unguis PSU-MF16
J Nat Prod 2021 May 28;84(5):1498-1506.PMID:33861594DOI:10.1021/acs.jnatprod.0c01308
Seven new polyketides including a phenol (1), two diphenyl ethers (2 and 3), two depsidones (4 and 5), and two phthalides (6 and 7) were isolated from the fungus Aspergillus unguis PSU-MF16 along with 27 known compounds. Their structures were determined by extensive spectroscopic analysis. The absolute configurations of 1 and 4-7 were established using comparative analyses of calculated and experimental ECD spectra. Among the new metabolites, 2 exhibited the best antimicrobial activity against Staphylococcus aureus, methicillin-resistant S. aureus, and Microsporum gypseum with equal MIC values of 16 μg/mL. In addition, known Emeguisin A displayed potent antimicrobial activity against S. aureus, methicillin-resistant S. aureus, and Cryptococcus neoformans with equal MIC values of 0.5 μg/mL, compared with the standard drugs, vancomycin and amphotericin B. The structure-activity relationship study of the isolated compounds for antimicrobial activity is discussed.