
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 6341 products of "Natural and semi-synthetic antibiotics"
Sort by
Purity (%)
0
100
|
0
|
50
|
90
|
95
|
100
Moxifloxacin Impurity 17
CAS:Formula:C15H12F3NO3Color and Shape:White To Off-White SolidMolecular weight:311.26Dicloxacillin Sodium
CAS:<p>Dicloxacillin Sodium (BRL1702 Sodium) is a β-lactamase resistant penicillin similar to oxacillin and it has activity against gram-positive/negative bacteria.</p>Formula:C19H17Cl2N3O5S·H2O·NaPurity:98%Color and Shape:SolidMolecular weight:510.32Amoxicillin EP Impurity F (Amoxicillin USP Related Compound F)
CAS:Formula:C10H8N2O2Color and Shape:Yellow SolidMolecular weight:188.19Eribulin Mesylate
CAS:Formula:C40H59NO11·CH4O3SColor and Shape:Pale Yellow SolidMolecular weight:729.91 96.1025-Deacetyl-23-Acetyl Rifampicin
CAS:Formula:C43H58N4O12Color and Shape:Red SolidMolecular weight:822.95Cefotaxime Impurity 2 Triethylamine Salt
Formula:C21H18N6O5S4·Et3NColor and Shape:Off-White SolidMolecular weight:562.67 101.19Micafungin Impurity 3
CAS:Formula:C21H21NO4Color and Shape:White To Off-White SolidMolecular weight:351.40Nafcillin-d5 Sodium Salt
CAS:Formula:C21H16D5N2O5S·NaColor and Shape:White To Off-White SolidMolecular weight:418.50 22.99Faropenem Impurity 9 Sodium Salt
Formula:C16H20NO7S·NaColor and Shape:White To Off-White SolidMolecular weight:370.40 22.99Cefazolin EP Impurity L
Formula:C14H14N8O4S3Color and Shape:White To Off-White SolidMolecular weight:454.51Ceftizoxime Impurity 17 (Ceftizoxime S-Oxide)
CAS:Formula:C13H13N5O6S2Color and Shape:Pale Brown SolidMolecular weight:399.41Fidaxomicin Metabolite OP-1118
CAS:Formula:C48H68Cl2O17Color and Shape:White To Off-White SolidMolecular weight:987.96Posaconazole Piperazine N1-Oxide
CAS:Formula:C37H42F2N8O5Color and Shape:White To Off-White SolidMolecular weight:716.79Azithromycin EP Impurity L (Azithromycin N-Oxide)
CAS:Formula:C38H72N2O13Color and Shape:White To Off-White SolidMolecular weight:765.00Ceftolozane Impurity 14
CAS:Formula:C10H13N5O6SColor and Shape:Off-White SolidMolecular weight:331.30Pristinamycin
CAS:<p>Pristinamycin, from Streptomyces pristinaespiralis, is a streptogramin antibiotic targeting Gram-positive and resistant bacteria like MRSA.</p>Formula:C73H89N11O17Color and Shape:SolidMolecular weight:1392.55Cefoperazone Impurity 2
CAS:Formula:C15H17N3O6Color and Shape:White To Off-White SolidMolecular weight:335.32Aztreonam Impurity 3
Formula:C19H31N9O10S2Color and Shape:White To Off-White SolidMolecular weight:609.63Moxifloxacin Related Compound 1 (8-Methoxy Quinolonic Ethyl Ester)
CAS:Formula:C16H15F2NO4Color and Shape:White To Off-White SolidMolecular weight:323.30Flucloxacillin Impurity 1 Disodium Salt
Formula:C21H19ClFN3O7S·2NaColor and Shape:White To Off-White SolidMolecular weight:511.92 2*22.99Bacitracin Impurity 2
CAS:Formula:C23H22N2O4SColor and Shape:White To Off-White SolidMolecular weight:422.50Cefaclor-d5
CAS:Formula:C15H9D5ClN3O4SColor and Shape:White To Off-White SolidMolecular weight:372.83Posaconazole Impurity 8
Formula:C29H37N5O3Color and Shape:White To Off-White SolidMolecular weight:503.65Bacitracin B3 Tritrifluoroacetate
CAS:Formula:C65H101N17O16S·3C2HF3O2Molecular weight:1408.69 3*114.02Posaconazole Piperazine N4-Oxide
CAS:Formula:C37H42F2N8O5Color and Shape:Off-White SolidMolecular weight:716.79Amikacin Impurity 2 TetraHCl (1,3''-Di-HABA Kanamycin A TetraHCl)
CAS:Formula:C26H50N6O15·4HClColor and Shape:White To Off-White SolidMolecular weight:686.71 4*36.46Cefixime EP Impurity A Disodium Salt (Mixture of Diastereomers)
CAS:Formula:C16H15N5O8S2·2NaMolecular weight:469.45 2*22.99Lovastatin Impurity 2 (Mixture of Diastereomers)
Formula:C24H34O6Color and Shape:White To Off-White SolidMolecular weight:418.53Amoxicillin EP Impurity G (Amoxicillin USP Related Compound G)
CAS:Formula:C24H26N4O7SColor and Shape:White To Off-White SolidMolecular weight:514.55Posaconazole Impurity 4
CAS:Formula:C14H15F2N3O2Color and Shape:Off-White SolidMolecular weight:295.29Tobramycin Impurity 5
Formula:C23H36N2O7Color and Shape:White To Off-White SolidMolecular weight:452.55Cefpodoxime Proxetil EP Impurity A -d3 Sodium Salt (Cefpodoxime-d3 Acid Sodium Salt)
CAS:Formula:C15H13D3N5O6S2·NaColor and Shape:Pale Yellow SolidMolecular weight:429.47 22.99Emamectin-d3 (Mixture of B1a and B1b)
CAS:Formula:C49H72D3NO13·C48H70D3NO13Color and Shape:White To Off-White SolidMolecular weight:889.15(B1a) 875.12(component B1b)Erythromycin Ethylsuccinate
CAS:Formula:C43H75NO16Color and Shape:White To Off-White SolidMolecular weight:862.06Tedizolid Impurity 53
Formula:C19H20FN6O6PColor and Shape:White To Off-White SolidMolecular weight:478.38Potassium Clavulanate EP Impurity K
CAS:Formula:C8H19NColor and Shape:Colorless OilMolecular weight:129.25Griseofulvin EP Impurity B (Dechloro Griseofulvin)
CAS:Formula:C17H18O6Color and Shape:Off-White SolidMolecular weight:318.33Ceftazidime Impurity 17 Ditrifluoroacetate
Formula:C26H30N6O7S2·2C2HF3O2Color and Shape:Off-White SolidMolecular weight:602.68 2*114.02Ampicillin EP Impurity D Disodium Salt (Mixture of Diastereomers)
CAS:Formula:C16H19N3O5S·2NaColor and Shape:Off-White SolidMolecular weight:365.41 2*22.99Clindamycin Dehydro Impurity
CAS:Formula:C18H32N2O5SColor and Shape:White To Off-White SolidMolecular weight:388.52Cefixime Impurity (7-AVCA)
CAS:Formula:C9H10N2O3SColor and Shape:Off-White SolidMolecular weight:226.25Cefaclor EP Impurity H
Formula:C23H21ClN4O5SColor and Shape:White To Off-White SolidMolecular weight:500.95Cefoperazone-d5
CAS:Formula:C25H22D5N9O8S2Color and Shape:White To Off-White SolidMolecular weight:650.70Bacitracin EP Impurity A Tritrifluoroacetate
CAS:Formula:C64H99N17O16S·3C2HF3O2Molecular weight:1394.66 3*114.02Amoxicillin EP Impurity A (Sulbactam EP Impurity B, Piperacillin EP Impurity H, Amoxicillin USP Related Compound A)
CAS:Formula:C8H12N2O3SColor and Shape:White To Off-White SolidMolecular weight:216.26Cefixime EP Impurity B (E-isomer) Trifluoroacetate
Formula:C15H17N5O6S2·C2HF3O2Molecular weight:427.45 114.02Potassium Clavulanate
CAS:Formula:C8H8NO5·KColor and Shape:White To Off-White SolidMolecular weight:198.16 39.10Lovastatin EP Impurity F
CAS:Formula:C24H34O5Color and Shape:White To Off-White SolidMolecular weight:402.53Acetylated Penicilloic Acid Disodium Salt
Formula:C21H19Cl2N3O7S·2NaColor and Shape:White To Off-White SolidMolecular weight:528.36 2 22.99Cefdinir 3-Isomer Sodium Salt
CAS:Formula:C14H13N5O5S2·NaColor and Shape:Pale Yellow SolidMolecular weight:394.40 22.99Rifabutin EP Impurity D (3-Amino-4-Imido Rifamycin S)
CAS:Formula:C37H47N3O11Color and Shape:Dark Red SolidMolecular weight:709.79Posaconazole Impurity 39
CAS:Formula:C37H40F2N8O5Color and Shape:White To Off-White SolidMolecular weight:714.77Cilastatin Impurity 2 Sodium Salt
Formula:C13H19ClNO3·NaColor and Shape:White To Off-White SolidMolecular weight:272.75 22.99Pivmecillinam EP Impurity C HCl ((2R,4S)-Isomer)
CAS:Formula:C20H35N3O4S·HClMolecular weight:413.58 36.46Cefpodoxime Proxetil EP Impurity D (Mixture of Diastereomers)
CAS:Formula:C21H27N5O9S2Molecular weight:557.59Griseofulvin-d3
CAS:Formula:C17H14D3ClO6Color and Shape:White To Off-White SolidMolecular weight:355.79Tazobactam Acid Impurity 13
CAS:Formula:C23H22N4O5SColor and Shape:White To Off-White SolidMolecular weight:466.51Ceftazidime Impurity 5
CAS:Formula:C20H22N4O4S3Color and Shape:Pale Yellow SolidMolecular weight:478.60Moxidectin EP Impurity K
CAS:Formula:C44H56N2O11Color and Shape:Off-White SolidMolecular weight:788.94Cefixime EP Impurity D
CAS:Formula:C16H15N5O7S2Color and Shape:White To Off-White SolidMolecular weight:453.44Benzylposaconazole
CAS:Formula:C44H48F2N8O4Color and Shape:White To Off-White SolidMolecular weight:790.92Tyrothricin
CAS:Formula:C99H140N20O17·C66H87N13O13Color and Shape:White To Off-White SolidMolecular weight:1882.34 1270.51Ascomycin (Tacrolimus EP Impurity A)
CAS:Formula:C43H69NO12Color and Shape:White To Off-White SolidMolecular weight:792.02Cefalotin EP Impurity A
CAS:Formula:C14H14N2O4S2Color and Shape:Off-White SolidMolecular weight:338.40Potassium Clavulanate EP Impurity J
CAS:Formula:C6H16N2Color and Shape:Colourless LiquidMolecular weight:116.21Tetracycline EP Impurity D (Chlortetracycline EP Impurity I, Lymecycline EP Impurity D, 4-Epianhydrotetracycline)
CAS:Formula:C22H22N2O7Molecular weight:426.43Cefazedone Impurity 14
Formula:C18H15Cl2N5O5S3Color and Shape:Pale Yellow SolidMolecular weight:548.43Valnemulin EP Impurity A (Mixture of Diastereomers)
CAS:Formula:C31H52N2O6SColor and Shape:White To Off-White SolidMolecular weight:580.83Ampicillin EP Impurity G
CAS:Formula:C16H14N2O2Color and Shape:White To Off-White SolidMolecular weight:266.30Mitomycin Related Compound 1 Trifluoroacetate (Mixture of Diastereomers)
CAS:Formula:C14H16N4O5·C2HF3O2Molecular weight:320.31 114.02Moxifloxacin EP Impurity G-d4 HCl (ent-Moxifloxacin-d4 HCl)
CAS:Formula:C21H20D4FN3O4·HClColor and Shape:Yellow SolidMolecular weight:405.46 36.46Chloramphenicol EP Impurity B
CAS:Formula:C7H5NO3Color and Shape:White To Off-White SolidMolecular weight:151.12Cefadroxil Impurity 4 (Mixture of Diastereomers)
Formula:C24H24N4O7SColor and Shape:White To Off-White SolidMolecular weight:512.54Ivermectin EP Impurity I (4S-Isomer)
CAS:Formula:C48H74O14Color and Shape:Off-White SolidMolecular weight:875.11Cefazedone Impurity 17
CAS:Formula:C12H14N2O6SColor and Shape:White To Off-White SolidMolecular weight:314.31Lincomycin HCl (Clindamycin Phosphate EP Impurity A HCl)
CAS:Formula:C18H34N2O6S·HClMolecular weight:406.54 36.46Fosravuconazole Disodium Salt
CAS:Formula:C23H18F2N5O5PS·2NaColor and Shape:White To Off-White SolidMolecular weight:545.46 2*22.99Cloxacillin EP Impurity A (Cloxacillin Penicilloic Acid)
CAS:Formula:C19H20ClN3O6SColor and Shape:White To Off-White SolidMolecular weight:453.89Linezolid Impurity 41
CAS:Formula:C16H19FN2O5Color and Shape:White To Off-White SolidMolecular weight:338.34Faropenem Impurity 32
CAS:Formula:C21H35NO6SSiColor and Shape:Colorless LiquidMolecular weight:457.66Tiamulin EP Impurity M
CAS:Formula:C24H36O5Color and Shape:White To Off-White SolidMolecular weight:404.55Amoxicillin EP Impurity J Disodium Salt (Amoxicillin USP Related Compound J Disodium Salt, Amoxicillin Dimer Impurity Disodium Salt) (Mixture of Diastereomers)
CAS:Formula:C32H38N6O10S2·2NaMolecular weight:728.79 2*22.99Cefprozil EP Impurity N
CAS:Formula:C21H23N3O7SColor and Shape:Pale Yellow SolidMolecular weight:461.49Tedizolid Impurity 6
CAS:Formula:C17H16FN6O6PColor and Shape:Pale Yellow SolidMolecular weight:450.32Cefepime EP Impurity A DiHCl
CAS:Formula:C19H24N6O5S2·2HClColor and Shape:Off-White SolidMolecular weight:480.57 2*36.46Erythromycin A 9-Oxime (Z-Isomer)
CAS:Formula:C37H68N2O13Color and Shape:White To Off-White SolidMolecular weight:748.95Moxifloxacin Hydroxy Quinoline Impurity
CAS:Formula:C13H9F2NO4Color and Shape:White To Off-White SolidMolecular weight:281.21Erythromycin-13C-d3
CAS:Formula:C3613CH64D3NO13Color and Shape:White To Off-White SolidMolecular weight:737.95Lovastatin Impurity 1 Sodium Salt
CAS:Formula:C19H29O5·NaColor and Shape:White To Off-White SolidMolecular weight:337.44 22.99Ivermectin EP Impurity D
CAS:Formula:C48H72O15Color and Shape:White To Off-White SolidMolecular weight:889.09Dicloxacillin-13C4 Sodium Salt
CAS:Formula:C1513C4H16Cl2N3O5S·NaColor and Shape:White To Off-White SolidMolecular weight:473.28 22.99Posaconazole Impurity 46
CAS:Formula:C36H40F2N8O5Color and Shape:White To Off-White SolidMolecular weight:702.76Bacitracin B1 Tritrifluoroacetate
CAS:Formula:C65H101N17O16S·3C2HF3O2Molecular weight:1408.69 3*114.02Clindamycin Phosphate EP Impurity L HCl
CAS:Formula:C18H34ClN2O8PS·HClColor and Shape:White To Off-White SolidMolecular weight:504.96 36.46Formyl DL-Penicillamine
CAS:Formula:C6H11NO3SColor and Shape:White To Off-White SolidMolecular weight:177.22Kanamycin A Related Compound 1 Triacetate
CAS:Formula:C12H25N3O7·3C2H4O2Molecular weight:323.35 3*60.05Cefotaxime EP Impurity F (Cefotaxime Dimer)
CAS:Formula:C30H30N10O12S4Color and Shape:Off-White SolidMolecular weight:850.876-Methoxy Moxifloxacin
Formula:C21H25N3O4Color and Shape:White To Off-White SolidMolecular weight:383.45δ 2-Cefcapene Pivoxil
CAS:Formula:C23H29N5O8S2Color and Shape:White To Off-White SolidMolecular weight:567.63Phenoxymethylpenicillin EP Impurity D
CAS:Formula:C16H18N2O6SColor and Shape:White To Off-White SolidMolecular weight:366.39Ampicillin EP Impurity H (Cefaclor EP Impurity F)
CAS:Formula:C10H8N2OColor and Shape:Pale Yellow SolidMolecular weight:172.19Cefprozil Impurity 4
Formula:C17H19N3O6SColor and Shape:White To Off-White SolidMolecular weight:393.41Minocycline EP Impurity E Sodium Salt (Enamine Form) (12-Amino Minocycline Sodium Salt)
CAS:Formula:C23H27N4O6·NaMolecular weight:455.49 22.99Moxifloxacin Boron Complex Impurity
CAS:Formula:C18H16BF2NO8Color and Shape:White To Off-White SolidMolecular weight:423.13Ceftazidime EP Impurity B Trifluoroacetate
CAS:Formula:C22H22N6O7S2·C2HF3O2Color and Shape:White To Off-White SolidMolecular weight:546.57 114.02Tigecycline EP Impurity B HCl (Tigecycline Metabolite M6 HCl, 9-Amino Minocycline HCl)
CAS:Formula:C23H28N4O7·HClColor and Shape:Yellow SolidMolecular weight:472.50 36.46Ampicillin EP Impurity B (L-Ampicillin)
CAS:Formula:C16H19N3O4SColor and Shape:White To Off-White SolidMolecular weight:349.41Clindamycin Pentadecanoate HCl
CAS:Formula:C33H61ClN2O6S·HClColor and Shape:White To Off-White SolidMolecular weight:649.37 36.46Colistin A Pentatrifluoroacetate (Polymyxin E1 Pentatrifluoroacetate)
CAS:Formula:C53H100N16O13·5C2HF3O2Molecular weight:1169.48 5*114.02Terbinafine Impurity 1 HCl [N-Methyl-Bis (1-Naphtalenemethyl) Amine HCl]
CAS:Formula:C23H21N·HClColor and Shape:White To Off-White SolidMolecular weight:311.43 36.46Lincomycin EP Impurity C HCl
CAS:Formula:C17H32N2O6S·HClColor and Shape:White To Ff-White SolidMolecular weight:392.52 36.46Linezolid Impurity 21
CAS:Formula:C12H15FN2O3Color and Shape:White To Off-White SolidMolecular weight:254.26Cefazedone Impurity 10
CAS:Formula:C10H12N2O5SColor and Shape:White To Off-White SolidMolecular weight:272.28Linezolid USP Related Compound C
CAS:Formula:C14H18FN3O3Color and Shape:Pale Yellow SolidMolecular weight:295.31Cefpodoxime Proxetil EP Impurity B (Mixture of Diastereomers)
CAS:Formula:C20H25N5O8S2Color and Shape:Off-White SolidMolecular weight:527.58Azithromycin EP Impurity M
CAS:Formula:C37H68N2O13Color and Shape:White To Off-White SolidMolecular weight:748.95Moxifloxacin EP Impurity E HCl (Moxifloxacin USP Related Compound E)
CAS:Formula:C20H22FN3O4·HClColor and Shape:Pale Yellow SolidMolecular weight:387.41 36.46Spectinomycin EP Impurity B DiHCl (Spectinomycin CP Impurity B DiHCl)
Formula:C14H26N2O8·2HClColor and Shape:Off-White SolidMolecular weight:350.37 2*36.46Moxifloxacin Impurity 38
CAS:Formula:C21H24FN3O5Color and Shape:Pale Yellow SolidMolecular weight:417.44Cefepime Impurity 10
Formula:C10H16N4O4SColor and Shape:White To Off-White SolidMolecular weight:288.32Cefprozil Impurity 1 (Z-Cefprozil)
CAS:Formula:C18H19N3O5SColor and Shape:Off-White SolidMolecular weight:389.43Cefotaxime Impurity 9 Trifluoroacetate
CAS:Formula:C16H17N5O7S2·C2HF3O2Color and Shape:Pale Yellow SolidMolecular weight:455.46 114.02Neomycin Sulfate EP Impurity A (Neamine)
CAS:Formula:C12H26N4O6Color and Shape:White To Off-White SolidMolecular weight:322.36


