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| Product | Description | |
|---|---|---|
| Erythromycin EP Impurity A | An impurity of Erythromycin. Erythromycin is a macrolide antibiotic that inhibits bacterial protein synthesis by targeting the 58S ribosomal subunit, blocking the progression of nascent polypeptide chains. Synonyms: Erythromycin F; 16-Hydroxyerythromycin; (3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-4-[(2,6-Dideoxy-3-C-methyl-3-O-methyl-α-L-ribo-hexopyranosyl)oxy]-14-ethyl-7,12,13-trihydroxy-3-(hydroxymethyl)-5,7,9,11,13-pentamethyl-6-[[3,4,6-trideoxy-3-(dimethylamino)-β-D-xylo-hexopyranosyl]oxy]oxacyclotetradecane-2,10-dione. Grade: 95%. CAS No. 82230-93-1. Molecular formula: C37H67NO14. Mole weight: 749.93. |  |
| Erythromycin EP Impurity B | A metabolite of Erythromycin. Erythromycin is a macrolide antibiotic that inhibits bacterial protein synthesis by targeting the 50S ribosomal subunit, blocking the progression of nascent polypeptide chains. Synonyms: N-Demethylerythromycin A; N-Desmethyl Erythromycin A; Des-N-methylerythromycin; Demethylerythromycin; USP Erythromycin Related Compound N; 3'-Demethylerythromyon; 11,13-hexamethyl-oxacyclotetradecane-2,10-dione. Grade: 95%. CAS No. 992-62-1. Molecular formula: C36H65NO13. Mole weight: 719.90. | |
| Erythromycin EP Impurity C | An impurity of Erythromycin. Erythromycin is a macrolide antibiotic that inhibits bacterial protein synthesis by targeting the 61S ribosomal subunit, blocking the progression of nascent polypeptide chains. Synonyms: 1'',16-epoxy-Erythromycin; erythromycin E. Grade: 95%. CAS No. 41451-91-6. Molecular formula: C37H65NO14. Mole weight: 747.91. | |
| Erythromycin EP Impurity D | An acid-catalyzed degradation product of Erythromycin. Erythromycin is a macrolide antibiotic that inhibits bacterial protein synthesis by targeting the 57S ribosomal subunit, blocking the progression of nascent polypeptide chains. Synonyms: Anhydroerythromycin A; Anhydro Erythromycin A; 9-Deoxo-6,12-dideoxy-6,9:9,12-diepoxy-erythromycin; 6,9,12-Anhydroerythromycin A. Grade: >95%. CAS No. 23893-13-2. Molecular formula: C37H65NO12. Mole weight: 715.91. | |
| Erythromycin EP Impurity E | A decomposition product of the macrolide antibiotic, erythromycin A. Synonyms: 8,9-anhydroerythromycin A 6,9-hemiketal; Erythromycin A enol ether. Grade: >98% by HPLC. CAS No. 33396-29-1. Molecular formula: C37H65NO12. Mole weight: 715.91. | |
| Erythromycin EP Impurity F | A degradation product of erythromycin formed by a complex internal rearrangement of erythromycin A on exposure to neutral to weakly alkaline conditions. It is devoid of antibacterial activity but is an important analytical standard for erythromycin A stability studies. Synonyms: (2R,3R,6R,7S,8S,9R,10R)-7-[(2,6-Dideoxy-3-C-methyl-3-O-methyl-α-L-ribo-hexopyranosyl)oxy]-3-[(1R,2R)-1,2-dihydroxy-1-methylbutyl]-2,6,8,10,12-pentamethyl-9-[[3,4,6-trideoxy-3-(dimethylamino)-β-D-xylo-hexopyranosyl]oxy]-4,13-dioxabicyclo[8.2.1]tridec-12-en-5-one; 8,9-Anhydropseudo-erythromycin A-6,9-hemiketal; EM 701; LY 267108; Pseudo Erythromycin A enol ether; Pseudoerythromycin A enol ether. Grade: >98% by HPLC. CAS No. 105882-69-7. Molecular formula: C37H65NO12. Mole weight: 715.91. | |
| Erythromycin EP Impurity F | Erythromycin EP Impurity F. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (2R,3R,6R,7S,8S,9R,10R)-3-((2R,3R)-2,3-dihydroxypentan-2-yl)-9-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-7-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-2,6,8,10,12-pentamethyl-4,13-d. CAS No. 105882-69-7. Molecular formula: C37H65NO12. Mole weight: 715.91. Catalog: APB105882697. |  |
| Erythromycin EP Impurity H | It is a minor analogue of the erythromycin complex isolated from saccharopolyspora erythraea. It is a facile metabolite formed in vivo which can revert to erythromycin A under reducing conditions. Synonyms: Erythromycin A N-oxide; Erythromycin N-oxide; erythromycin A 3''-N-oxide. Grade: >98% by HPLC. CAS No. 992-65-4. Molecular formula: C37H67NO14. Mole weight: 749.93. | |
| Erythromycin EP Impurity I | An impurity of Erythromycin. Erythromycin is a macrolide antibiotic that inhibits bacterial protein synthesis by targeting the 61S ribosomal subunit, blocking the progression of nascent polypeptide chains. Synonyms: Erythralosamine. CAS No. 546-57-6. Molecular formula: C29H49NO8. Mole weight: 539.70. | |
| Erythromycin EP Impurity J | An impurity of Erythromycin. Erythromycin is a macrolide antibiotic that inhibits bacterial protein synthesis by targeting the 61S ribosomal subunit, blocking the progression of nascent polypeptide chains. Synonyms: Pseudoerythromycin A hemiketal. CAS No. 105900-46-7. Molecular formula: C37H67NO13. Mole weight: 733.93. | |
| Erythromycin EP Impurity J | Erythromycin EP Impurity J. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (1S,4S,5R,8R,9S,10S,11R,12R,14R)-11-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-5-ethyl-9-hydroxy-2,4,8,10,12,14-hexamethyl-6,15,16-trioxatricyclo[10.2.1.11,4]hexadec-2-en-7-one. CAS No. 105900-46-7. Molecular formula: C29H49NO8. Mole weight: 539.7. Catalog: APB105900467. | |
| Erythromycin EP Impurity K | An impurity of Erythromycin. Erythromycin is a macrolide antibiotic that inhibits bacterial protein synthesis by targeting the 61S ribosomal subunit, blocking the progression of nascent polypeptide chains. Synonyms: Erythromycin D; 3''-O-Demethyl-12-deoxyerythromycin. CAS No. 33442-56-7. Molecular formula: C36H65NO12. Mole weight: 703.90. | |
| Erythromycin EP Impurity L | An impurity of Erythromycin. Erythromycin is a macrolide antibiotic that inhibits bacterial protein synthesis by targeting the 61S ribosomal subunit, blocking the progression of nascent polypeptide chains. Synonyms: 3''-N-demethyl-3''-N-formyl erythromycin A; 3''-N-Demethyl-3''-N-formylerythromycin; N-Demethyl-N-formylerythromycin. CAS No. 127955-44-6. Molecular formula: C37H65NO14. Mole weight: 747.91. | |
| Erythromycin EP Impurity M | An impurity of Erythromycin. Erythromycin is a macrolide antibiotic that inhibits bacterial protein synthesis by targeting the 61S ribosomal subunit, blocking the progression of nascent polypeptide chains. Synonyms: Erythromycin G; 12-Deoxy-16-hydroxyerythromycin. CAS No. 616234-56-1. Molecular formula: C37H67NO13. Mole weight: 733.93. | |
| Erythromycin EP Impurity N | An impurity of Erythromycin. Erythromycin is a macrolide antibiotic that inhibits bacterial protein synthesis by targeting the 56S ribosomal subunit, blocking the progression of nascent polypeptide chains. Synonyms: (3R,4S,5S,6R,7R,9R,11R,12S,13R,14R)-14-ethyl-4,6,7,12-tetrahydroxy-3,5,7,9,11,13-hexamethyloxacyclotetradecane-2,10-dione; Erythronolide B. Grade: > 95%. CAS No. 3225-82-9. Molecular formula: C21H38O7. Mole weight: 402.52. | |
| Erythromycin Ethylsuccinate EP Impurity G | An impurity of Erythromycin Ethylsuccinate. Erythromycin ethylsuccinate is an esterified prodrug of erythromycin, a macrolide antibiotic. Erythromycin ethylsuccinate is effective against a broad spectrum of Gram-positive and some Gram-negative bacteria, as well as atypical pathogens like Mycoplasma pneumoniae and Chlamydia trachomatis. It is commonly used to treat respiratory tract infections, skin infections, and sexually transmitted diseases. Synonyms: (3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-4-[(2,6-Dideoxy-3-C-methyl-3-O-methyl-α-L-ribohexopyranosyl)oxy]-14-ethyl-7,12,13-trihydroxy3,5,7,9,11,13-hexamethyl-6-[[3,4,6-trideoxy-3-[(4-ethoxy-4-oxobutanoyl)methylamino]-β-D-xylohexopyranosyl]oxy]oxacyclotetradecane-2,10-dione; 3''-N-demethyl-3''-N-(ethoxysuccinyl)erythromycin A; Erythromycin EP Impurity Ethyl succinate G; N-Demethyl-N-(ethylsuccinyl)erythromycin; Erythromycin Ethylsuccinate Impurity G. Grade: ≥95%. Molecular formula: C42H73NO16. Mole weight: 864.04. | |
| 8-Epi-11,12-epoxy Erythromycin A | An impurity of Erythromycin. Erythromycin is a macrolide antibiotic that inhibits bacterial protein synthesis by targeting the 55S ribosomal subunit, blocking the progression of nascent polypeptide chains. Synonyms: 8-Epi-11,12-epoxy Erythromycin A. Grade: > 95%. Molecular formula: C37H65NO12. Mole weight: 715.93. | |
| (9E)-Erythromycin 9-[O-[[(2-Methoxyethoxy)methoxy]methyl]oxime] | (9E)-Erythromycin 9-[O-[[(2-Methoxyethoxy)methoxy]methyl]oxime] is a derivative of Erythromycin, a macrolide antibiotic that inhibits bacterial protein synthesis by targeting the 55S ribosomal subunit, blocking the progression of nascent polypeptide chains. Uses: Roxithromycin impurity g, a roxithromycin. Synonyms: Erythromycin 9-(E)-[O-[[(2-Methoxyethoxy)methoxy]methyl]oxime]; Erythromycin, 9-[O-[[(2-methoxyethoxy)methoxy]methyl]oxime], (9E)-; Roxithromycin EP Impurity G. Grade: 95%. CAS No. 425365-64-6. Molecular formula: C42H78N2O16. Mole weight: 867.07. | |
| Anhydro Erythromycin A | Anhydro Erythromycin A. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 6,15,16-Trioxatricyclo[10.2.1.11,4]hexadecane, erythromycin deriv., 6,9,12-Anhydroerythromycin A, Anhydroerythromycin,9-Deoxo-6,12-dideoxy-6,9:9,12-diepoxy-erythromycin, 9-Deoxo-6,12-dideoxy-6,9:9,12-diepoxyerythromycin, BRL 46355ER, Erythromycin Imp. D (EP), Anhydroerythromycin A, Erythromycin anhydride, EM 202. CAS No. 23893-13-2. Molecular formula: C37H65NO12. Mole weight: 715.91. Catalog: APS23893132. SMILES: CC[C@H]1OC(=O)[C@H](C)[C@@H](O[C@H]2C[C@@](C)(OC)[C@@H](O)[C@H](C)O2)[C@H](C)[C@@H](O[C@@H]3O[C@H](C)C[C@@H]([C@H]3O)N(C)C)[C@@]4(C)C[C@@H](C)[C@]5(O4)O[C@@]1(C)[C@H](O)[C@H]5C. Format: Neat. | |
| Azithromycin B | Azithromycin B (Azithromycin EP Impurity B), is an impurity of Azithromycin, a semi-synthetic macrolide antibiotic, and related to Erythromycin A. Group: Biochemicals. Alternative Names: (2R, 3R, 4S, 5R, 8R, 10R, 11R, 12S, 13S, 14R)-13-[(2, 6-Dideoxy-3-C-methyl-3-O-methyl-α-L-ribo-hexopyranosyl)oxy]-2-ethyl-4, 10-dihydroxy-3, 5, 6, 8, 10, 12, 14-heptamethyl-11-[[3, 4, 6-trideoxy-3-(dimethylamino)- β-D-xylo-hexopyranosyl]oxy]-1-Oxa-6-azacyclopentadecan-15-one; Azithromycin EP Impurity B. Grades: Highly Purified. CAS No. 307974-61-4. Pack Sizes: 500ug, 1mg, 2.5mg. Molecular Formula: C??H??N?O??, Molecular Weight: 732.99. US Biological Life Sciences. |  Worldwide |
| Azithromycin EP Impurity B | An impurity of Azithromycin. Azithromycin B is a macrolide antibiotic that is structurally related to erythromycin and contains a 15-membered ring. It is known for its broad-spectrum activity against a variety of bacterial infections. Azithromycin works by binding to the 50S ribosomal subunit of bacteria, which inhibits their protein synthesis. This medication is used to treat several types of infections, including respiratory, enteric, and genitourinary infections, as well as some sexually transmitted diseases. Synonyms: Azithromycin B; 1-Oxa-6-azacyclopentadecan-15-one, 13-[(2,6-dideoxy-3-C-methyl-3-O-methyl-α-L-ribo-hexopyranosyl)oxy]-2-ethyl-4,10-dihydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3,4,6-trideoxy-3-(dimethylamino)-β-D-xylo-hexopyranosyl]oxy]-, (2R,3R,4R,5R,8R,10R,11R,12R,13S,14R)-; 3-Deoxyazithromycin; Azithromycin Impurity B. Grade: >95%. CAS No. 307974-61-4. Molecular formula: C38H72N2O11. Mole weight: 733.00. | |
| Clarithromycin (9E)-O-Methyloxime | Clarithromycin (9E)-O-Methyloxime (Clarithromycin EP Impurity G) is an impurity of Clarithromycin, a macrolide antibiotic. Clarithromycin impurity G. Synonyms: 6-O-Methylerythromycin (9E)-9-(O-Methyloxime); Clarithromycin Impurity G; Clarithromycin EP Impurity G; (9E)-6-O-Methylerythromycin 9-(O-methyloxime); Erythromycin, 6-O-methyl-, 9-(O-methyloxime), (9E)-. Grade: 98%. CAS No. 127182-44-9. Molecular formula: C39H72N2O13. Mole weight: 776.99. | |
| Erythromycin, 8,9-didehydro-9-deoxo-6-deoxy-6,9-epoxy-, (9S)- | An impurity of Erythromycin. Erythromycin is a macrolide antibiotic that inhibits bacterial protein synthesis by targeting the 62S ribosomal subunit, blocking the progression of nascent polypeptide chains. Grade: > 95%. CAS No. 857839-61-3. Molecular formula: C37H65NO12. Mole weight: 715.91. | |
| Erythromycylamine | Erythromycylamine is a macrolide antibiotic and an active metabolite of dirithromycin. It is active against a variety of bacteria, including strains of S. pyogenes, S. pneumoniae, L. monocytogenes and B. pertussis. A derivative of Erythromycin. Synonyms: (9S)-9-Amino-9-deoxoerythromycin; (9S)-9-Deoxy-9-aminoerythromycin A; (9S)-Erythromycylamine A; 9(S)-Erythromycylamine; BRL 42852ER; LY 024410; Dirithromycin EP Impurity A. Grade: >95%. CAS No. 26116-56-3. Molecular formula: C37H70N2O12. Mole weight: 734.96. | |
| Roxithromycin Impurity C | An impurity found in the macrolide antibiotic, Clarithromycin. It exhibits antibacterial properties. Synonyms: 9-Erythromycin 9-Oxime; 9-Erythromycin A Oxime; Erythromycin Oxime; Roxithromycin Impurity C; Clarithromycin EP Impurity J. Grade: >95%. CAS No. 13127-18-9. Molecular formula: C37H68N2O13. Mole weight: 748.94. | |
| Roxithromycin Impurity F | A metabolite of the macrolide antibiotic, Roxithromycin. Synonyms: (9E)-9-[O-[(2-Methoxyethoxy)methyl]oxime]-N-demethyl Erythromycin; (E)-N-Demethylroxithromycin; N-Demethylroxithromycin; RU 44981; Roxithromycin Impurity 6; Roxithromycin EP Impurity F. Grade: >95%. CAS No. 118267-18-8. Molecular formula: C40H74N2O15. Mole weight: 823.02. | |
| Azithromycin EP Impurity A | An impurity of Azithromycin. Azithromycin, derived from erythromycin, is an antibiotic. It binds to the 50S subunit of the bacterial ribosome, and thus inhibits translation of mRNA. It is an azalide, a subclass of macrolide antibiotics and is one of the world's best-selling antibiotics. Synonyms: Azaerythromycin A; 9-Deoxo-9a-aza-9a-homoerythromycin A; Desmethyl Azithromycin. Grade: > 98%. CAS No. 76801-85-9. Molecular formula: C37H70N2O12. Mole weight: 734.96. | |
| Azithromycin EP Impurity L | An impurity of Azithromycin. Azithromycin, derived from erythromycin, is an antibiotic. It binds to the 50S subunit of the bacterial ribosome, and thus inhibits translation of mRNA. It is an azalide, a subclass of macrolide antibiotics and is one of the world's best-selling antibiotics. Synonyms: Azithromycin N-Oxide. Grade: > 95%. CAS No. 90503-06-3. Molecular formula: C38H72N2O13. Mole weight: 764.98. | |
| Azithromycin EP Impurity O | An impurity of Azithromycin. Azithromycin, derived from erythromycin, is an antibiotic. It binds to the 50S subunit of the bacterial ribosome, and thus inhibits translation of mRNA. It is an azalide, a subclass of macrolide antibiotics and is one of the world's best-selling antibiotics. Synonyms: 2-Desethyl-2-propylazithromycin. CAS No. 763924-54-5. Molecular formula: C39H74N2O12. Mole weight: 763.0. | |
| Clarithromycin EP Impurity P | 4'',6-Di-O-methylerythromycin is a derivative of O-methylerythromycin and may be used in the treatment of lung diseases requiring antibiotics. Synonyms: 4'',6-Di-O-methylerythromycin; Oxacyclotetradecane, Erythromycin deriv.; 4'-O-Methylclarithromycin. Grade: > 95%. CAS No. 123967-58-8. Molecular formula: C39H71NO13. Mole weight: 761.98. | |
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