Lactams
![Medchemexpress LLC N-[2-amino-5-(2-thienyl)phenyl]-2-(1-piperazinyl)-6-quinolinecarboxamide | 1609389-52-7 | 99.6% | 429.54 g/mol | C24H23N5OS | 100 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000243882.png-250.jpg)
Medchemexpress LLC N-[2-amino-5-(2-thienyl)phenyl]-2-(1-piperazinyl)-6-quinolinecarboxamide | 1609389-52-7 | 99.6% | 429.54 g/mol | C24H23N5OS | 100 MG
ACY-957 is a small-molecule, orally active inhibitor selective for histone deacetylases HDAC1 and HDAC2, used in preclinical research to modulate epigenetic regulation and induce γ-globin expression. CAS 1609389-52-7; formula C24H23N5OS; molecular weight 429.54 g/mol.
- Selective inhibition of HDAC1 and HDAC2 (IC50 7 nM and 18 nM)
- Markedly reduced activity against HDAC3 (IC50 ≈ 1,300 nM), supporting class I selectivity
- Orally active in preclinical models, suitable for in vivo dosing studies
- High reported purity for research-grade material (~99.6%)
- Solid, light yellow to yellow form; stable when stored at -20 °C
- Used to study epigenetic regulation and hemoglobin induction in preclinical research
Medchemexpress LLC Acy-957 | 1609389-52-7 | 99.6% | 429.54 g/mol | C24H23N5OS | 50 MG
ACY-957 is an orally active, selective small-molecule inhibitor of histone deacetylase isoforms HDAC1 and HDAC2, used for research into epigenetic regulation. It shows potent activity against HDAC1 and HDAC2, reduced activity against HDAC3, and no measurable inhibition of several class II HDACs. The compound is supplied as a high-purity solid and is available in solution formats for assay use.
- Potent inhibition of HDAC1 and HDAC2.
- High selectivity over HDAC3 and class II HDACs.
- Suitable for in vitro and in vivo formulation protocols.
- High reported purity for reliable experimental results.
- Provided as a solid and as ready-to-use DMSO solutions.
- Documented storage and stability conditions for sample handling.
Sigma Aldrich Fine Chemicals Biosciences Cefadroxil Related Compound B United States Pharmacopeia (USP) Reference Standard | 22252-43-3 | MFCD09750368 | 25MG
Cefadroxil Related Compound B United States Pharmacopeia (USP) Reference Standard | Mol Wt: 214.24 | 22252-43-3 | MFCD09750368 | 25MG
Sigma Aldrich Fine Chemicals Biosciences 7-Aminodesacetoxycephalosporanic acid | 22252-43-3 | MFCD09750368 | 250MG
7-Aminodesacetoxycephalosporanic acid | Mol Wt: 214.24 | 22252-43-3 | MFCD09750368 | 250MG
Medchemexpress LLC Tazobactam sodium | 89785-84-2 | 99.7% | 322.27 | 100 MG
Tazobactam sodium is an antibiotic belonging to the beta-lactamase inhibitor class. It is combined with Ceftolozane to enhance the activity of ceftolozane against various ESBL-producing Enterobacteriaceae and some *Bacteroides spp.*. It is intended for research use only and not for sale to patients. In vitro studies show that Tazobactam sodium (0.045 mg/mL Piperacillin/Tazobactam, 3 days) can induce oxidative stress and mitochondrial damage, leading to apoptosis in HK-2 cells when used with Piperacillin. In vivo, Tazobactam sodium (300-500 mg/kg of Piperacillin/Tazobactam, iv, single dose) has been observed to cause direct nephrotoxicity, including tubular damage and mitochondrial structure alteration, in C57BL/6 mouse models.
- Beta-lactamase inhibitor
- Extends activity of ceftolozane against ESBL-producing Enterobacteriaceae and *Bacteroides spp*.
Medchemexpress LLC Tazobactam-15N3 sodium | 89785-84-2 | MFCD00917472 | 98.8% | 325.25 g/mol | C10H11(15N)3NaO5S | 1 MG
Tazobactam-15N3 sodium is the 15N-labeled isotopologue of tazobactam sodium intended for use as an analytical tracer or internal standard in quantitative NMR, GC-MS, and LC-MS methods. It is supplied as a sodium salt in small package sizes and is characterized by high chemical purity and supporting documentation.
- 15N-labeled isotopologue suitable as tracer or internal standard.
- High purity of 98.8% for reliable analytical results.
- Supplied in small quantities suitable for method development and standards (e.g., 1 mg).
- Certificate of analysis and safety data sheet available.
- Molecular weight 325.25 g/mol and chemical formula C10H11(15N)3NaO5S provided for documentation.
Medchemexpress LLC Aztreonam E-isomer | 99341-02-3 | MFCD09028013 | 98.7% | C13H17N5O8S2 | 10MG
(E)-Aztreonam is the E-isomer of the monocyclic β-lactam antibiotic aztreonam, provided as a research-grade powder for in vitro studies of gram-negative bacterial infections and related assays. The material is characterized by a molecular weight of 435.43 and a reported purity of about 98.7%; follow recommended storage to preserve stability.
- Monocyclic β-lactam antibiotic, E-isomer
- Reported purity approximately 98.7%
- Intended for in vitro research on gram-negative pathogens
- Supplied as a powder with defined storage conditions
- Molecular formula C13H17N5O8S2; molecular weight 435.43
- Available in small milligram quantities suitable for analytical use
eMolecules Ambeed / Azetidin-3-one hydrochloride / 250mg / 534082891 / A196857 / / 17557-84-5 / MFCD01861742 / 107.540 / C3H6ClNO
Ambeed / Azetidin-3-one hydrochloride / 250mg / 534082891 / A196857 / / 17557-84-5 / MFCD01861742 / 107.540 / C3H6ClNO
![eMolecules 2-[3-[tert-Butyl(dimethyl)silyl]oxypropoxy]acetonitrile | 1430412-80-8 | | 500mg](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502168186.JPG-250.jpg)
eMolecules 2-[3-[tert-Butyl(dimethyl)silyl]oxypropoxy]acetonitrile | 1430412-80-8 | | 500mg
Synthonix - Stock | 2-[3-[tert-Butyl(dimethyl)silyl]oxypropoxy]acetonitrile | 500mg | 525932268 | T10078 | | 1430412-80-8 | | 229.395 | C11H23NO2Si
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Medchemexpress LLC Aztreonam | 78110-38-0 | MFCD00072145 | 99.6% | 435.43 | C13H17N5O8S2 | 10 MG
Aztreonam (standard) is an analytical reference material containing the monobactam antibiotic aztreonam. Provided at high purity, it is intended for analytical testing, assay calibration, method validation, and quality control in pharmaceutical and biochemical laboratories.
- Analytical reference standard for aztreonam.
- High purity suitable for assay and quality control work.
- Available in small precision pack sizes for analytical use.
- Reported molecular weight 435.43 and formula C13H17N5O8S2.
- Includes CAS number 78110-38-0 for unambiguous identification.
eMolecules Synthonix 4-Acetoxy-2-azetidinone 250mg 779536178 A15221 0 000 28562-53-0 MFCD00010593 129 115 C5H7NO3
Synthonix 4-Acetoxy-2-azetidinone 250mg 779536178 A15221 0 000 28562-53-0 MFCD00010593 129 115 C5H7NO3