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 6335 products of "Natural and semi-synthetic antibiotics"
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Ref: 4Z-T-153013
Discontinued productRef: 4Z-V-032026
Discontinued productRef: 4Z-S-080004
Discontinued productRef: 4Z-P-206018
Discontinued productRef: 4Z-L-102068
Discontinued productRef: 4Z-C-156031
Discontinued productTacrolimus Impurity 6 (Tacrolimus Hydroxy Acid Impurity)
CAS:Formula:C44H71NO13Molecular weight:822.06Ref: 4Z-T-3916
Discontinued productRef: 4Z-G-044011
Discontinued productVancomycin EP Impurity H (Mono-Dechloro-6 Vancomycin B)
Formula:C66H76ClN9O24Molecular weight:1414.84Ref: 4Z-V-032012
Discontinued productRef: 4Z-M-663
Discontinued productRef: 4Z-P-7437
Discontinued productRef: 4Z-D-176014
Discontinued productRef: 4Z-E-2067
Discontinued productRef: 4Z-J-008013
Discontinued productRef: 4Z-T-153020
Discontinued productRef: 4Z-L-209002
Discontinued productRef: 4Z-C-3745
Discontinued productRef: 4Z-E-071021
Discontinued productRef: 4Z-E-2047
Discontinued productRef: 4Z-E-158009
Discontinued productRef: 4Z-R-2320
Discontinued productRef: 4Z-C-126043
Discontinued productRef: 4Z-R-1825
Discontinued productRef: 4Z-I-3619
Discontinued productRef: 4Z-L-158001
Discontinued productRef: 4Z-T-199016
Discontinued productRef: 4Z-E-110040
Discontinued productRef: 4Z-L-209003
Discontinued productRef: 4Z-B-081028
Discontinued productRef: 4Z-R-3519
Discontinued productRef: 4Z-T-199010
Discontinued productRef: 4Z-R-2321
Discontinued productDirithromycin EP Impurity A (Erythromycylamine)
CAS:Formula:C37H70N2O12Color and Shape:White To Off-White SolidMolecular weight:734.98Ref: 4Z-D-106005
Discontinued productRef: 4Z-T-199008
Discontinued productRef: 4Z-C-11116
Discontinued productRef: 4Z-P-8921
Discontinued productRef: 4Z-L-1212
Discontinued productRef: 4Z-P-0460
Discontinued productRef: 4Z-C-10505
Discontinued productRef: 4Z-T-199001
Discontinued productRef: 4Z-T-127009
Discontinued productRef: 4Z-T-199007
Discontinued productRef: 4Z-V-032027
Discontinued productRef: 4Z-N-113003
Discontinued productRef: 4Z-E-110039
Discontinued productRef: 4Z-M-214007
Discontinued productRef: 4Z-I-069008
Discontinued productRef: 4Z-J-008011
Discontinued productRef: 4Z-E-110038
Discontinued productRef: 4Z-C-3718
Discontinued productRef: 4Z-D-176040
Discontinued productRef: 4Z-B-190005
Discontinued productRef: 4Z-G-044012
Discontinued productRef: 4Z-E-110025
Discontinued productRef: 4Z-T-411001
Discontinued productRef: 4Z-C-104033
Discontinued productRef: 4Z-R-1822
Discontinued productRef: 4Z-F-110002
Discontinued productRef: 4Z-C-158028
Discontinued productBenzathine Benzylpenicillin EP Impurity C (Benzylpenicilloic Acids Benzathine) (R,R-Isomer)
Formula:C32H38N4O4SColor and Shape:White To Off-White SolidMolecular weight:574.74Ref: 4Z-P-0413
Discontinued productRef: 4Z-D-176037
Discontinued productRef: 4Z-N-080007
Discontinued productRef: 4Z-I-069004
Discontinued productRef: 4Z-C-11602
Discontinued productRef: 4Z-A-6629
Discontinued productRef: 4Z-E-158011
Discontinued productRef: 4Z-T-153015
Discontinued productRef: 4Z-R-2327
Discontinued productRef: 4Z-C-135011
Discontinued productRef: 4Z-D-176031
Discontinued productRef: 4Z-P-206014
Discontinued productRef: 4Z-S-080006
Discontinued productRef: 4Z-A-4217
Discontinued productRef: 4Z-S-081007
Discontinued productRef: 4Z-B-081022
Discontinued productRef: 4Z-P-0450
Discontinued productRef: 4Z-I-3610
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-3210
Discontinued productRef: 4Z-A-2344
Discontinued productRef: 4Z-M-125022
Discontinued productRef: 4Z-C-156029
Discontinued productRef: 4Z-R-749
Discontinued productRef: 4Z-R-1818
Discontinued productRef: 4Z-F-087008
Discontinued productRef: 4Z-C-1104
Discontinued productRef: 4Z-A-192093
Discontinued productRef: 4Z-G-068002
Discontinued productRef: 4Z-D-176023
Discontinued productRef: 4Z-C-106039
Discontinued productRef: 4Z-A-4216
Discontinued productRef: 4Z-M-842
Discontinued productRef: 4Z-I-069005
Discontinued productBenzylpenicillin Benzathine Tetrahydrate (Penicillin G Benzathine Tetrahydrate)
CAS:Formula:C16H18N2O4S·C16H20N2·4H2OMolecular weight:334.40 240.35 4*18.02Ref: 4Z-P-0410
Discontinued productRef: 4Z-C-126010
Discontinued productRef: 4Z-P-206006
Discontinued productColistin Impurity 3 Pentatrifluoroacetic Acid
Formula:C56H96N16O12·5CF3CO2HMolecular weight:1185.48 5*114.02Ref: 4Z-PC-321009
Discontinued productRef: 4Z-P-0422
Discontinued productRef: 4Z-A-4211
Discontinued productBenzylpenicillin Sodium Salt (Penicillin G Sodium Salt)
CAS:Formula:C16H17N2O4S·NaMolecular weight:333.38 22.99Ref: 4Z-P-0439
Discontinued productRef: 4Z-C-156026
Discontinued productRef: 4Z-L-2922
Discontinued productRef: 4Z-C-0846
Discontinued productRef: 4Z-A-2652
Discontinued productRef: 4Z-G-154004
Discontinued productRef: 4Z-M-5912
Discontinued productRef: 4Z-P-0453
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 productSultamicillin EP Impurity C (Ampicillin, Piperacillin EP Impurity A)
CAS:Formula:C16H19N3O4SMolecular weight:349.41Ref: 4Z-S-081002
Discontinued productRef: 4Z-P-0454
Discontinued productRef: 4Z-P-0455
Discontinued productα-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:415.46rac Zearalenone-d6 (major)
CAS:Controlled ProductFormula:C18H16D6O5Color and Shape:NeatMolecular weight:324.40T-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:466.52HT-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:705.83Fumonisin 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:705.83β-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:296.32Fumonisin 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:721.83Zearalenone
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:318.36rac 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:324.4015-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
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