
Natural and semi-synthetic antibiotics
Natural and semisynthetic antibiotics are characterised by chemical structures with heterocyclic rings and active functional groups that inhibit the growth of microorganisms. Their structures allow them to interact with vital bacterial processes, making them useful treatments for bacterial infections. Semisynthetic antibiotics can be modified to enhance their spectrum of activity or resistance to degradation.
At CymitQuimica, we offer high-quality natural and semisynthetic antibiotics for research in microbiology and pharmaceutical development.
Found 6347 products of "Natural and semi-synthetic antibiotics"
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Ref: 4Z-S-080007
Discontinued productRef: 4Z-T-109046
Discontinued productRef: 4Z-A-2632
Discontinued productRef: 4Z-P-391001
Discontinued productRef: 4Z-R-2325
Discontinued productBenzylpenicillin EP Impurity B Sodium Salt (Mixture of Diastereomers)
CAS:Formula:C16H19N2O5S·NaColor and Shape:White To Off-White SolidMolecular weight:351.40 22.99Ref: 4Z-P-0412
Discontinued productRef: 4Z-C-11116
Discontinued productRef: 4Z-C-3741
Discontinued productRef: 4Z-L-209008
Discontinued productRef: 4Z-R-2320
Discontinued productRef: 4Z-E-158009
Discontinued productRef: 4Z-T-3926
Discontinued productRef: 4Z-M-6612
Discontinued productRef: 4Z-R-7410
Discontinued productRef: 4Z-C-3718
Discontinued productRef: 4Z-T-109022
Discontinued productRef: 4Z-A-2346
Discontinued productRef: 4Z-R-1826
Discontinued productRef: 4Z-P-0421
Discontinued productRef: 4Z-A-137010
Discontinued productRef: 4Z-C-106037
Discontinued productRef: 4Z-L-102066
Discontinued productRef: 4Z-T-3953
Discontinued productRef: 4Z-C-9035
Discontinued productRef: 4Z-M-665
Discontinued productRef: 4Z-D-176028
Discontinued productRef: 4Z-PC-155022
Discontinued productRef: 4Z-A-137017
Discontinued productRef: 4Z-A-192075
Discontinued productRef: 4Z-M-342
Discontinued productRef: 4Z-L-102070
Discontinued productBenzylpenicillin Potassium EP Impurity E (Benzylpenicillin (Benzathine) EP Impurity E, Benzylpenicillin (Procaine) EP Impurity B, Benzylpenicillin Sodium EP Impurity E) (Mixture of Diastereomers)
CAS:Formula:C16H20N2O5SColor and Shape:White To Off-White SolidMolecular weight:352.41Ref: 4Z-P-0411
Discontinued productRef: 4Z-A-192073
Discontinued productRef: 4Z-R-1834
Discontinued productRef: 4Z-A-2345
Discontinued productRef: 4Z-F-107025
Discontinued productRef: 4Z-L-209004
Discontinued productRef: 4Z-P-206002
Discontinued productRef: 4Z-P-206014
Discontinued productRef: 4Z-L-209011
Discontinued productN-Nitroso Vancomycin EP Impurity H Trifluoroacetate
Formula:C66H75ClN10O25·C2HF3O2Molecular weight:1443.82 114.02Ref: 4Z-V-032041
Discontinued productRef: 4Z-A-6629
Discontinued productRef: 4Z-T-3919
Discontinued productN-Nitroso Vancomycin EP Impurity E Trifluoroacetate
Formula:C66H73Cl2N9O26·C2HF3O2Molecular weight:1479.25 114.02Ref: 4Z-V-032038
Discontinued productRef: 4Z-B-081024
Discontinued productRef: 4Z-L-209002
Discontinued productRef: 4Z-C-11304
Discontinued productRef: 4Z-M-125021
Discontinued productRef: 4Z-P-0458
Discontinued productRef: 4Z-D-176031
Discontinued productRef: 4Z-T-153004
Discontinued productRef: 4Z-D-176037
Discontinued productRef: 4Z-P-206009
Discontinued productRef: 4Z-C-156029
Discontinued productRef: 4Z-R-113001
Discontinued productRef: 4Z-L-209013
Discontinued productDoxycycline-d3 HCl
CAS:Formula:C22H21D3N2O8·HClColor and Shape:Off-White SolidMolecular weight:447.46 36.46Ref: 4Z-D-188
Discontinued productRef: 4Z-T-3936
Discontinued productRef: 4Z-T-163087
Discontinued productRef: 4Z-V-102001
Discontinued productRifamycin Impurity 10 (25-O-deacetyl-23-O-acetyl Rifamycin S)
Formula:C37H45NO12Molecular weight:695.76Ref: 4Z-R-077016
Discontinued productRef: 4Z-C-156026
Discontinued productRef: 4Z-D-5725
Discontinued productRef: 4Z-T-3958
Discontinued productRef: 4Z-R-2317
Discontinued productRef: 4Z-V-032028
Discontinued productRef: 4Z-C-158028
Discontinued productRef: 4Z-I-069008
Discontinued productRef: 4Z-T-127009
Discontinued productRef: 4Z-M-125015
Discontinued productRef: 4Z-C-127001
Discontinued productRef: 4Z-T-199009
Discontinued productRef: 4Z-C-11602
Discontinued productRef: 4Z-M-8414
Discontinued productAvoparcin (Mixture of alfa- and β-Isomers)
CAS:Formula:C89H102ClN9O36(alfa)C89H101Cl2N9O36(beta)Molecular weight:1909.27 (alfa), 1943.71 (beta)Ref: 4Z-D-176004
Discontinued productRef: 4Z-F-087008
Discontinued productRef: 4Z-C-264009
Discontinued productRef: 4Z-R-1818
Discontinued productRef: 4Z-C-9615
Discontinued productRef: 4Z-F-087018
Discontinued productRef: 4Z-P-0460
Discontinued productRef: 4Z-T-109051
Discontinued productRef: 4Z-PC-321006
Discontinued productRef: 4Z-C-104036
Discontinued productRef: 4Z-T-127014
Discontinued productRef: 4Z-F-087021
Discontinued productRef: 4Z-D-176015
Discontinued productRef: 4Z-R-357
Discontinued productRef: 4Z-C-126047
Discontinued productRef: 4Z-P-206015
Discontinued productRef: 4Z-PC-155039
Discontinued productRef: 4Z-C-9318
Discontinued productRef: 4Z-T-127021
Discontinued productRef: 4Z-C-136025
Discontinued productRef: 4Z-M-6610
Discontinued productRef: 4Z-S-088023
Discontinued productRef: 4Z-PC-155023
Discontinued productRef: 4Z-T-3924
Discontinued productBenzylpenicillin CP Impurity H
CAS:Formula:C10H11NO3Color and Shape:Off-White SolidMolecular weight:193.20Ref: 4Z-P-0419
Discontinued productRef: 4Z-T-3935
Discontinued productRef: 4Z-C-156028
Discontinued productBenzylpenicillin Clemizol (Penicillin G Clemizol)
CAS:Formula:C16H18N2O4S·C19H20ClN3Color and Shape:Pale Yellow SolidMolecular weight:334.39 325.84Ref: 4Z-P-048
Discontinued productRef: 4Z-P-7454
Discontinued productRef: 4Z-A-192105
Discontinued productRef: 4Z-C-104012
Discontinued productRef: 4Z-S-467
Discontinued productRef: 4Z-G-154005
Discontinued productRef: 4Z-A-137011
Discontinued productRef: 4Z-B-081009
Discontinued productRef: 4Z-E-2037
Discontinued productRef: 4Z-R-1830
Discontinued productRef: 4Z-F-107007
Discontinued productRef: 4Z-S-4314
Discontinued productRef: 4Z-P-7436
Discontinued productRef: 4Z-C-7836
Discontinued productRef: 4Z-S-083007
Discontinued productRef: 4Z-I-3621
Discontinued productLinezolid N-Oxide
CAS:Controlled ProductFormula:C16H20FN3O5Color and Shape:NeatMolecular weight:353.35Ref: 4Z-P-0455
Discontinued productSultamicillin EP Impurity C (Ampicillin, Piperacillin EP Impurity A)
CAS:Formula:C16H19N3O4SMolecular weight:349.41Ref: 4Z-S-081002
Discontinued productRef: 4Z-P-0454
Discontinued productN-Nitroso Benzylpenicillin Potassium EP Impurity E (N-Nitroso Benzylpenicillin (Benzathine), Benzylpenicillin Sodium EP Impurity E, N-Nitroso Benzylpenicillin (Procaine) EP Impurity B) (Mixture of Diastereomers)
Formula:C16H19N3O6SMolecular weight:381.40Ref: 4Z-P-0463
Discontinued productRef: 4Z-P-0453
Discontinued productT-2 Toxin
CAS:Controlled Product<p>Applications T-2 Toxin is a tricothecene mycotoxin produced by fungi of the genus Fusarium. T-2 Toxin induces DNA damage and cell death on prolonged administration.Environmental contaminants; Food contaminants<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Kim, C., et al.: Cancer Res., 57, 3115 (1997), Bottrel, R., et al.: Antimicrob. Agents Chemother., 1999, 43, 856 (1999), Murray, P., et al.: J. Immunol., 178, 2623 (2007), Choi, H., et al.: Toxicol. Appl. Pharmacol., 240, 46 (2009), Amuzie, C., et al.: Toxicol. Sci., 113, 412 (2010),<br></p>Formula:C24H34O9Color and Shape:White SolidMolecular weight:466.52Zearalenone
CAS:<p>Applications Estrogenic mycotoxin produced by Fusarium fungi commonly found in grains. One of a group of compounds known as resorcylic acid lactones.Environmental contaminants; Food contaminants<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Tanaka, T., et al.: J. Agric. Food Chem., 36, 979 (1988), Hamilton, S., et al.: Anticancer Res., 16, 3597 (1996), Hecht, S., et al.: Cancer Lett., 150, 49 (2000), Hussein, H., et al.: Toxicology, 167, 101 (2001), Lim, H., et al.: J. Immunol., 175, 4180 (2005),<br></p>Formula:C18H22O5Color and Shape:White To Light BrownMolecular weight:318.36α-Zearalenol-d4 (Major)
CAS:Controlled Product<p>Applications α-Zearalenol-d4 is the isotope labelled metabolite of Zearalenone (Z270500), an estrogenic mycotoxin produced by Fusarium fungi commonly found in grains.<br>References Olsen, M., et al.: Acta Pharmacol. Toxicol., 48, 15 (1981), Chang, W., et al.: Food Chem. Toxicol., 22, 887 (1984), El Golli, E., et al.: Toxicol Lett., 166, 122 (2006), Hassen, W., et al.: Toxicology, 232, 294 (2007), Benzoni, E., et al.: Reprod. Toxicol., 25, 461 (2008),<br></p>Formula:C18H20D4O5Color and Shape:NeatMolecular weight:324.4Zearalenone 4-Sulfate Ammonium Salt
CAS:Controlled ProductFormula:C18H25NO8SColor and Shape:NeatMolecular weight:415.46Fumonisin B1
CAS:<p>Stability Hygroscopic<br>Applications A mycotoxin produced by mold associated with corn. Fungal metabolite believed to cause leukoencephalomalacia in horses.Environmental contaminants; Food contaminants<br>References Monbaliu, S., et al.: J. Agric. Food Chem., 58, 10475 (2010), Klosowski, G., et al.: Biores. Technol., 101, 9723 (2010), Soerensen, L., et al.: Anal. Bioanal. Chem., 398, 1535 (2010),<br></p>Formula:C34H59NO15Color and Shape:NeatMolecular weight:721.83rac Zearalenone-d6 (major)
CAS:Controlled ProductFormula:C18H16D6O5Color and Shape:NeatMolecular weight:324.40Fumonisin B2
CAS:Controlled Product<p>Stability Hygroscopic, Toxic<br>Applications A mycotoxin produced by mold associated with corn. Inhibitor of sphingosine N-acyltransferase. Blocks the formation of ceramide from sphingosine.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Monbaliu, S., et al.: J. Agric. Food Chem., 58, 10475 (2010), Klosowski, G., et al.: Biores. Technol., 101, 9723 (2010), Soerensen, L., et al.: Anal. Bioanal. Chem., 398, 1535 (2010),<br></p>Formula:C34H59NO14Color and Shape:Off-WhiteMolecular weight:705.83rac Zearalenone-d6
CAS:Controlled Product<p>Applications Estrogenic mycotoxin produced by Fusarium fungi commonly found in grains. One of a group of compounds known as resorcylic acid lactones.Environmental contaminants; Food contaminants<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Tanaka, T., et al.: J. Agric. Food Chem., 36, 979 (1988), Hamilton, S., et al.: Anticancer Res., 16, 3597 (1996), Hecht, S., et al.: Cancer Lett., 150, 49 (2000), Hussein, H., et al.: Toxicology, 167, 101 (2001), Lim, H., et al.: J. Immunol., 175, 4180 (2005),<br></p>Formula:C18H16D6O5Color and Shape:BeigeMolecular weight:324.40HT-2 Toxin (>85%)
CAS:Controlled Product<p>Stability Hygroscopic<br>Applications HT-2 Toxin is a trichothecene group mycotoxin. HT-2 Toxin is the 4-hydroxy analogue of T-2 Toxin (T002980) which has been shown to induce DNA damage and cell death on prolonged administration.Environmental contaminants; Food contaminants<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Weidner, M. et al.: J. Agric. Food Chem., 60, 5676 (2012); Choi, H. et al.: Toxicol. Appl. Pharmacol., 240, 46 (2009); Amuzie, C. et al.: Toxicol. Sci., 113, 412 (2010);<br></p>Formula:C22H32O8Purity:>85%Color and Shape:Off-WhiteMolecular weight:424.48Fumonisin B3
CAS:Controlled Product<p>Stability Hygroscopic<br>Applications Fumonisin B3 is a mycotoxin present in corn. Fungal metabolite believed to cause leukoencephalomalacia in horses.<br>References Azcona-Olivera, J. et al.: J. Agric. Food Chem., 40, 531 (1992); Hopmans, E. et al.: J. Agric. Food Chem., 41, 1655 (1993); Monbaliu, S., et al.: J. Agric. Food Chem., 58, 10475 (2010), Klosowski, G., et al.: Biores. Technol., 101, 9723 (2010), Soerensen, L., et al.: Anal. Bioanal. Chem., 398, 1535 (2010),<br></p>Formula:C34H59NO14Color and Shape:BeigeMolecular weight:705.83β-Zearalenol-d4 (Major)
CAS:Controlled Product<p>Stability Light Sensitive<br>Applications Isotope labelled β-Zearalenol is an more active metabolite of Zearalenone (Z270500), a estrogenic mycotoxin produced by Fusarium fungi commonly found in grains.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Olsen, M., et al.: Acta Pharmacol. Toxicol., 48, 15 (1981), Chang, W., et al.: Food Chem. Toxicol., 22, 887 (1984), El Golli, E., et al.: Toxicol Lett., 166, 122 (2006), Hassen, W., et al.: Toxicology, 232, 294 (2007), Benzoni, E., et al.: Reprod. Toxicol., 25, 461 (2008),<br></p>Formula:C18H20D4O5Color and Shape:NeatMolecular weight:324.4Deoxynivalenol
CAS:Controlled Product<p>Applications Deoxynivalenol is a tricothecene mycotoxin and potent protein synthesis inhibitor. Deoxynivalenol exhibits cytotoxic activity in vivo via the ribotoxic stress response. Deoxynivalenol induces p38-mediated gene expression and apoptosis in leukocytes; activity results in systemic expression of interleukin-6 (IL-6) and other proinflammatory cytokines. Also induces migration of NF-κB into the nucleus.Environmental contaminants; Food contaminants<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Bae, et al.: Toxicol. Sci., 105, 59 (2008), Shi, et al.: Toxicol. Sci., 109, 247 (2009), Krishnaswamy, et al.: Free Radic. Biol. Med., 49 50 (2010),<br></p>Formula:C15H20O6Color and Shape:NeatMolecular weight:296.3215-O-Demethyl Tacrolimus
CAS:<p>Tacrolimus is a macrolide that is used as an immunosuppressive drug. It has been shown to bind to the FK-binding protein, which in turn inhibits calcineurin. This prevents the release of IL-2, TNF-α and other cytokines. The immunosuppressive effects of tacrolimus have been evaluated using analytical methods such as coefficients, affinity, and monitoring techniques such as immunoassays and agglutination. These techniques are used to evaluate the plasma concentration of tacrolimus. Tacrolimus also binds to proteins in the blood samples and can be detected by turbidimetric or electrochemiluminescence immunoassay reagents.</p>Formula:C43H67NO12Purity:Min. 95%Molecular weight:789.99 g/mol3-Acetyldeoxynivalenol
CAS:Controlled Product<p>Stability Appears to decompose in DMSO<br>Applications 3-Acetyldeoxynivalenol is a trichothecene mycotoxin that is produced in a plant-pathogenic fungus, Fusarium graminearum Schwabe.Environmental contaminants; Food contaminants<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Beyer, M., et al.: Int. J. Food. Microbiol., 119, 153 (2007); Schiefer, H.B., et al.: Can. J. Comp. Med., 49, 315 (1985); Mirocha, C.J., et al.: App. Enviro.Microbiol., 55, 1315 (1989);<br></p>Formula:C17H22O7Color and Shape:WhiteMolecular weight:338.3515-Acetyl Deoxynivalenol (~90%)
CAS:Controlled Product<p>Applications A mycotoxin produced by the fungi Fusarium culmorum and Fusarium graminearum, inhibits protein synthesis.Environmental contaminants; Food contaminants<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Ashraf, A.; et al.: Int. J. Biol. Biotechnol., 4, 391 (2007), Burlakoti, R., et al.: App. Environ. Microbiol., 74, 6513 (2008), Steinmetz, W., et al.: Eur. J. Med. Chem., 44, 4485 (2009), Zhang, Y., et al.: Phytopathol., 99, 95 (2009),<br></p>Formula:C17H22O7Purity:~90%Color and Shape:WhiteMolecular weight:338.354H-Furo[2,3-c]pyranyl Mupirocin Sodium Impurity
CAS:<p>Impurity Mupirocin EP Impurity D<br>Stability Hygroscopic<br>Applications Mupirocin (M794000) impurity. (Mupirocin EP Impurity D) The rearrangement isomer of Mupirocin is prepared using an enzyme-catalyzed, selective deesterification.<br>References Sime, J.T., et al.: Tetrahedron Lett., 28, 5169 (1987),<br></p>Formula:C26H43O9·NaColor and Shape:NeatMolecular weight:522.60





