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| Product | Description | |
|---|---|---|
| Rifamycin Impurity 10 | Rifamycin Impurity 10. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C36H43NO12. Mole Weight: 681.74. Catalog: APB09579. |  |
| Rifamycin Impurity 13 | Rifamycin Impurity 13. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C43H58N2O12. Mole Weight: 794.94. Catalog: APB09578. | |
| Rifamycin Impurity 14 | Rifamycin Impurity 14. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C37H47NO12. Mole Weight: 697.78. Catalog: APB09571. | |
| Rifamycin Impurity 15 | Rifamycin Impurity 15. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C37H47NO12. Mole Weight: 697.78. Catalog: APB09570. | |
| Rifamycin Impurity 16 | Rifamycin Impurity 16. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C37H47NO13. Mole Weight: 713.38. Catalog: APB09572. | |
| Rifamycin Impurity 17 | Rifamycin Impurity 17. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C34H43NO11. Mole Weight: 641.71. Catalog: APB09573. | |
| Rifamycin Impurity 18 | Rifamycin Impurity 18. Uses: For analytical and research use. Group: Impurity standards. CAS No. 31718-67-9. Molecular Formula: C36H45NO12. Mole Weight: 683.75. Catalog: APB31718679. | |
| Rifamycin Impurity 19 | Rifamycin Impurity 19. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C35H43NO11. Mole Weight: 653.72. Catalog: APB09574. | |
| Rifamycin Impurity 20 | Rifamycin Impurity 20. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C43H58N4O13. Mole Weight: 838.95. Catalog: APB09569. | |
| Rifamycin Impurity 22 | Rifamycin Impurity 22. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C37H43Br2NO12. Mole Weight: 853.55. Catalog: APB09575. | |
| Rifamycin Impurity 23 | Rifamycin Impurity 23. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C37H44N2O14. Mole Weight: 740.76. Catalog: APB09576. | |
| Rifamycin Impurity 24 | Rifamycin Impurity 24. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C37H42N2O14. Mole Weight: 738.74. Catalog: APB09577. | |
| Rifamycin Impurity 25 | Rifamycin Impurity 25. Uses: For analytical and research use. Group: Impurity standards. CAS No. 13292-22-3. Molecular Formula: C38H47NO13. Mole Weight: 725.79. Catalog: APB13292223. | |
| Rifamycin Impurity 4 | Rifamycin Impurity 4. Uses: For analytical and research use. Group: Impurity standards. CAS No. 59264-04-9. Molecular Formula: C37H45NO13. Mole Weight: 711.76. Catalog: APB59264049. | |
| Rifamycin Impurity 6 | Rifamycin Impurity 6. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C37H45NO12. Mole Weight: 695.76. Catalog: APB09580. | |
| Rifamycin Impurity 7 | Rifamycin Impurity 7. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C37H45NO12. Mole Weight: 695.76. Catalog: APB09581. | |
| Rifamycin Impurity 8 | Rifamycin Impurity 8. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C34H41NO11. Mole Weight: 639.70. Catalog: APB09582. | |
| 3-BroMorifaMycin S (Rifamycin Impurity 21) | 3-BroMorifaMycin S (Rifamycin Impurity 21). Uses: For analytical and research use. Group: Impurity standards. CAS No. 57375-25-4. Molecular Formula: C37H44BrNO12. Mole Weight: 774.66. Catalog: APB57375254. | |
| Rifabutin EP Impurity B (3-Amino Rifamycin S) | A derivative of Rifabutin.Rifabutin is an antibiotic used to treat tuberculosis and prevent and treat Mycobacterium avium complex. Synonyms: 3-Amino-1,4-dideoxy-1,4-dihydro-1,4-dioxorifamycin. Grades: > 95%. CAS No. 51756-80-0. Molecular formula: C37H46N2O12. Mole weight: 710.79. |  |
| Rifamycin Related Impurity 1 | Rifamycin Related Impurity 1. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C50H62N4O13. Mole Weight: 927.06. Catalog: APB09583. | |
| Rifaximin EP Impurity B (Rifamycin EP Impurity A) | Rifaximin EP Impurity B (Rifamycin EP Impurity A). Uses: For analytical and research use. Group: Impurity standards. CAS No. 13929-35-6. Molecular Formula: C39H49NO14. Mole Weight: 755.81. Catalog: APB13929356. | |
| Rifaximin EP Impurity C (Rifamycin) | Rifaximin EP Impurity C (Rifamycin). Uses: For analytical and research use. Group: Impurity standards. CAS No. 6998-60-3. Molecular Formula: C37H47NO12. Mole Weight: 697.78. Catalog: APB6998603. | |
| Rifaximin EP Impurity C Sodium Salt (Rifamycin Sodium) | Rifaximin EP Impurity C Sodium Salt (Rifamycin Sodium). Uses: For analytical and research use. Group: Impurity standards. CAS No. 14897-39-3. Molecular Formula: C37H46NNaO12. Mole Weight: 719.76. Catalog: APB14897393. | |
| Rifaximin EP Impurity E (Rifamycin EP Impurity B) | Rifaximin EP Impurity E (Rifamycin EP Impurity B). Uses: For analytical and research use. Group: Impurity standards. CAS No. 13553-79-2. Molecular Formula: C37H45NO12. Mole Weight: 695.76. Catalog: APB13553792. | |
| Rifaximin EP Impurity F (Rifamycin EP Impurity C) | Rifaximin EP Impurity F (Rifamycin EP Impurity C). Uses: For analytical and research use. Group: Impurity standards. CAS No. 14487-05-9. Molecular Formula: C39H47NO14. Mole Weight: 753.8. Catalog: APB14487059. | |
| 23-Monoketo Rifabutin | 23-Monoketo Rifabutin is an impurity of Rifabutin (R505000), a semisynthetic derivative of Rifamycin S that inhibits nucleic acid synthesis. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 2.5mg, 5mg. Molecular Formula: C46H58N4O11, Molecular Weight: 842.97. US Biological Life Sciences. |  Worldwide |
| 25-Deacetyl-21-Acetyl Rifampicin | 25-Deacetyl-21-acetyl Rifampicin is a structural isomer, and impurity, of Rifampicin (R508000), a semisynthetic antibiotic. Antibacerial (tuberculostatic). Synonyms: Semi-synthetic rifamycin. Antibacterial (tuberculostatic). Grades: > 95%. CAS No. 1416773-22-2. Molecular formula: C43H58N4O12. Mole weight: 822.96. | |
| (2S, 16Z, 18E, 20S, 21S, 22R, 23R, 24R, 25S, 26R, 27S, 28E) -25- (Acetyloxy) -5, 21, 23-trihydroxy-27-methoxy-2, 4, 16, 20, 22, 24, 26-heptamethyl-11-methylene-2, 7- (epoxypentadeca[1, 11, 13]trienimino) benzofuro[4, 5-e]pyrido[1, 2-a]benzimidazole-1, 6, 15 (2H, 11H) -trione | (2S, 16Z, 18E, 20S, 21S, 22R, 23R, 24R, 25S, 26R, 27S, 28E) -25- (Acetyloxy) -5, 21, 23-trihydroxy-27-methoxy-2, 4, 16, 20, 22, 24, 26-heptamethyl-11-methylene-2, 7- (epoxypentadeca[1, 11, 13]trienimino) benzofuro[4, 5-e]pyrido[1, 2-a]benzimidazole-1, 6, 15 (2H, 11H) -trione is an impurity of Rifaximin (R509500), a non-absorbable semisynthetic Rifamycin antibiotic. Group: Biochemicals. Grades: Highly Purified. CAS No. 1351775-03-5. Pack Sizes: 2.5mg, 5mg. Molecular Formula: C43H49N3O11, Molecular Weight: 783.86. US Biological Life Sciences. | Worldwide |
| (2S, 16Z, 18E, 20S, 21S, 22R, 23R, 24R, 25S, 26R, 27S, 28E) -25- (Acetyloxy) -6, 21, 23-trihydroxy-27-methoxy-2, 4, 16, 20, 22, 24, 26-heptamethyl-11-methylene-2, 7- (epoxypentadeca[1, 11, 13]trienimino) benzofuro[4, 5-e]pyrido[1, 2-a]benzimidazole-1, 5, 15 (2H, 11H) -trione | (2S, 16Z, 18E, 20S, 21S, 22R, 23R, 24R, 25S, 26R, 27S, 28E) -25- (Acetyloxy) -6, 21, 23-trihydroxy-27-methoxy-2, 4, 16, 20, 22, 24, 26-heptamethyl-11-methylene-2, 7- (epoxypentadeca[1, 11, 13]trienimino) benzofuro[4, 5-e]pyrido[1, 2-a]benzimidazole-1, 5, 15 (2H, 11H) -trione is an impurity of Rifaximin (R509500), a non-absorbable semisynthetic Rifamycin antibiotic. Group: Biochemicals. Grades: Highly Purified. CAS No. 1351775-04-6. Pack Sizes: 2.5mg, 5mg. Molecular Formula: C43H49N3O11, Molecular Weight: 783.86. US Biological Life Sciences. | Worldwide |
| 3-[(4-Methyl-1-piperazinyllimino)methyl] Rifamycin O | 3-[(4-Methyl-1-piperazinyllimino)methyl] Rifamycin O is an impurity of Rifampicin. Rifampicin is a bactericidal antibiotic agent of the rifamycin group. Molecular formula: C45H58N4O14. Mole weight: 878.96. | |
| 3-Amino-4-imino-rifamycin S | 3-Amino-4-imino-rifamycin S. Uses: Designed for use in research and industrial production. Additional or Alternative Names: Rifabutin EP Impurity D. CAS No. 62041-01-4. Molecular formula: C37H47N3O11. Mole weight: 709.78. Purity: 0.95. Product ID: ACM62041014. Alfa Chemistry ISO 9001:2015 Certified. |  |
| 3-(Isonicotinoylhydrazonomethyl) Rifamycin | 3-(Isonicotinoylhydrazonomethyl) Rifamycin. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 3-Formylrifamycin Isonicotinylhydrazone. CAS No. 13292-53-0. Pack Sizes: 5MG. Molecular Formula: C44H52N4O13. Mole Weight: 844.90. Catalog: APS13292530. SMILES: CO[C@H]1\C=C\O[C@@]2 (C)Oc3c (C)c (O)c4c (O)c (NC (=O)\C (=C/C=C/[C@H] (C)[C@H] (O)[C@@H] (C)[C@@H] (O)[C@@H] (C)[C@H] (OC (=O)C)[C@@H]1C)\C)c (\C=N\NC (=O)c5ccncc5)c (O)c4c3C2=O. Format: Neat. Shipping: Room Temperature. | |
| 4-Methylpiperazine-1-yl-imino Rifamycin O | 4-Methylpiperazine-1-yl-imino Rifamycin O is an impurity of Rifampamycin. Rifampicin is a bactericidal antibiotic agent of the rifamycin group. Molecular formula: C45H60N4O14. Mole weight: 880.97. | |
| Desacetyl Rifampicin Quinone | Desacetyl Rifampicin Quinone is an impurity of Rifampicin. Group: Biochemicals. Alternative Names: 25-Deacetyl-1, 4-didehydro-1, 4-dideoxy-3-[[ (4-methyl-1-piperazinyl) imino]methyl]-1, 4-dioxo-Rifamycin; 25-Desacetylrifampin Quinone. Grades: Highly Purified. CAS No. 65110-92-1. Pack Sizes: 1mg. US Biological Life Sciences. | Worldwide |
| Desacetyl Rifampicin Quinone | Desacetyl Rifampicin Quinone is an impurity of Rifampicin. Rifampicin is a bactericidal antibiotic agent of the rifamycin group. Synonyms: 25-Deacetyl-1,4-didehydro-1,4-dideoxy-3-[[(4-methyl-1-piperazinyl)imino]methyl]-1,4-dioxo-Rifamycin; 25-DesacetylRifampicin Quinone; (2S, 8E, 12E, 14E, 16S, 17S, 18R, 19R, 20R, 21S, 22S, 23S, 24E)-5, 17, 19, 21-Tetrahydroxy-23-methoxy-2, 4, 12, 16, 18, 20, 22-heptamethyl-8-{[(4-methylpiperazin-1-yl)amino]methylidene}-6H-2, 7-(epoxypentadeca[1, 11, 13]trienoazeno)naphtho[2, 1-b]furan-1, 6, 9, 11(2H, 8H)-tetrone; 25--[[(4-methyl-1-piperazinyl)imino]methyl]-1,4-dioxo-RiflRifampicin Quinone. Grades: > 98%. CAS No. 65110-92-1. Molecular formula: C41H54N4O11. Mole weight: 778.89. | |
| Rifabutin Impurity C | Rifabutin Impurity C is an impurity of Rifabutin (R505000), a semisynthetic derivative of Rifamycin S that inhibits nucleic acid synthesis. Group: Biochemicals. Grades: Highly Purified. CAS No. 1242076-45-4. Pack Sizes: 2.5mg, 5mg. Molecular Formula: C46H60N4O11, Molecular Weight: 844.99. US Biological Life Sciences. | Worldwide |
| Rifampicin Impurity 1 (Mixture of Z and E Isomers) | Rifampicin Impurity 1 (Mixture of Z and E Isomers) is an impurity of Rifampamycin. Rifampicin is a bactericidal antibiotic agent of the rifamycin group. Synonyms: 3-[[2- (4-Pyridinylcarbonyl) hydrazinylidene]methyl]-rifamycin; 3-(Isonicotinoylhydrazonomethyl) Rifamycin; 3-Formyl Rifamycin Isonicotinoyl Hydrazone; (8E, 12Z, 14Z, 24Z)-5, 6, 17, 19-Tetrahydroxy-23-methoxy-2, 4, 12, 16, 18, 20, 22-heptamethyl-1, 9, 11-trioxo-8-{[2-(pyridine-4-carbonyl)hydrazinyl]methylidene}-1, 2, 8, 9-tetrahydro-2, 7-(epoxypentadeca[1, 11, 13]trienoimino)naphtho[2, 1-b]furan-21-yl acetate. Grades: > 98%. CAS No. 13292-53-0. Molecular formula: C44H52N4O13. Mole weight: 844.90. | |
| Rifampicin Impurity 2 | Rifampicin Impurity 2 is an impurity of Rifampamycin. Rifampicin is a bactericidal antibiotic agent of the rifamycin group. Molecular formula: C41H56N4O12. Mole weight: 796.90. | |
| Rifampicin Impurity 3 | Rifampicin Impurity 3 is an impurity of Rifampamycin. Rifampicin is a bactericidal antibiotic agent of the rifamycin group. Molecular formula: C42H56N4O12. Mole weight: 808.93. | |
| Rifampicin Impurity 4 | Rifampicin Impurity 4 is an impurity of Rifampamycin. Rifampicin is a bactericidal antibiotic agent of the rifamycin group. Molecular formula: C40H54N4O11. Mole weight: 766.87. | |
| Rifampicin Impurity 5 | Rifampicin Impurity 5 is an impurity of Rifampamycin. Rifampicin is a bactericidal antibiotic agent of the rifamycin group. Molecular formula: C40H50N4O9. Mole weight: 730.84. | |
| Rifampicin Impurity 6 | Rifampicin Impurity 6 is an impurity of Rifampamycin. Rifampicin is a bactericidal antibiotic agent of the rifamycin group. Molecular formula: C43H58N4O13. Mole weight: 838.94. | |
| Rifampicin Impurity 7 | Rifampicin Impurity 7 is an impurity of Rifampamycin. Rifampicin is a bactericidal antibiotic agent of the rifamycin group. Molecular formula: C43H58N4O13. Mole weight: 838.94. | |
| Rifampicin Impurity 8 | Rifampicin Impurity 8 is an impurity of Rifampamycin. Rifampicin is a bactericidal antibiotic agent of the rifamycin group. Molecular formula: C41H56N4O12. Mole weight: 796.90. | |
| Rifamycin Y | Rifamycin Y. Uses: For analytical and research use. Group: Impurity standards. CAS No. 15271-73-5. Molecular Formula: C39H47NO15. Mole Weight: 769.8. Catalog: APB15271735. | |
| Rifaximin EP Impurity B | Rifaximin EP Impurity B is an impurity of Rifaximin. Rifaximin is a semi-synthetic, nonsystemic antibiotic derived from rifamycin SV with antibacterial activity. It also acts as a pregnane X receptor (PXR) agonist. It is approved for the treatment of traveler's diarrhea, irritable bowel syndrome, and hepatic encephalopathy. Uses: A rifamycin (r508200) derivative as antibacterial agent. Synonyms: Rifamycin B; Nancimycin; 4-O-(Carboxymethyl)rifamycin; 4-O-(Carboxymethyl)rifamycin; [(1, 2-Dihydro-5, 6, 17, 19, 21-pentahydroxy-23-methoxy-2, 4, 12, 16, 18, 20, 22-heptamethyl-1, 11-dioxo-2, 7-(epoxypentadeca[1, 11, 13]trienimino)naphtho[2, 1-b]furan-9-yl)oxy]acetic Acid 21-Acetate. CAS No. 13929-35-6. Molecular formula: C39H49NO14. Mole weight: 755.80. | |
| Rifaximin EP Impurity C | Rifaximin EP Impurity C is an antibacterial drug which functions by inhibiting bacterial RNA polymerase (RNAP), is an impurity of Rifaximin. It also has anti-gram-positive bacterial and mycobacterium activities. Uses: Anti-bacterial agents. Synonyms: Rifamycin SV; Rifocin; Rifamicine SV; (2S, 12Z, 14E, 16S, 17S, 18R, 19R, 20R, 21S, 22R, 23S, 24E)-21-(Acetyloxy)-5, 6, 9, 17, 19-pentahydroxy-23-methoxy-2, 4, 12, 16, 18, 20, 22-heptamethyl-2, 7-(epoxypentadeca[1, 11, 13]trienimino)naphtho[2, 1-b]furan-1, 11(2H)-dione. Grades: >95%. CAS No. 6998-60-3. Molecular formula: C37H47NO12. Mole weight: 697.77. | |
| Rifaximin EP Impurity D | Rifaximin EP Impurity D is an impurity of Rifaximin. Rifaximin is a semi-synthetic, nonsystemic antibiotic derived from rifamycin SV with antibacterial activity. It also acts as a pregnane X receptor (PXR) agonist. It is approved for the treatment of traveler's diarrhea, irritable bowel syndrome, and hepatic encephalopathy. Synonyms: Rifaximin Y. Grades: >95%. Molecular formula: C43H49N3O12. Mole weight: 799.86. | |
| Rifaximin EP Impurity E | Rifaximin EP Impurity E is an impurity of Rifaximin. Rifaximin is a semi-synthetic, nonsystemic antibiotic derived from rifamycin SV with antibacterial activity. It also acts as a pregnane X receptor (PXR) agonist. It is approved for the treatment of traveler's diarrhea, irritable bowel syndrome, and hepatic encephalopathy. Synonyms: Rifamycin S; 5, 17, 19, 21-Tetrahydroxy-23-methoxy-2, 4, 12, 16, 18, 20, 22-heptamethyl-2, 7-(epoxypentadeca[1, 11, 13]trienimino)naphtho[2, 1-b]furan-1, 6, 9, 11(2H)-tetrone 21-Acetate; 1,4-Dideoxy-1,4-dihydro-1,4-dioxorifamycin. Grades: 98%. CAS No. 13553-79-2. Molecular formula: C37H45NO12. Mole weight: 695.75. | |
| Rifaximin EP Impurity F | Rifaximin EP Impurity F is an intermediate of Rifaximin. Rifaximin is a semi-synthetic, nonsystemic antibiotic derived from rifamycin SV with antibacterial activity. It also acts as a pregnane X receptor (PXR) agonist. It is approved for the treatment of traveler's diarrhea, irritable bowel syndrome, and hepatic encephalopathy. Uses: Rifaximin intermediate. Synonyms: Rifamycin O; 4-O-(Carboxymethyl)-1-deoxy-1,4-dihydro-4-hydroxy-1-oxo-rifamycin γ-Lactone. Grades: 99%. CAS No. 14487-05-9. Molecular formula: C39H47NO14. Mole weight: 753.79. | |
| Rifaximin EP Impurity H | Rifaximin EP Impurity H is an intermediate of Rifaximin. Rifaximin is a semi-synthetic, nonsystemic antibiotic derived from rifamycin SV with antibacterial activity. It also acts as a pregnane X receptor (PXR) agonist. It is approved for the treatment of traveler's diarrhea, irritable bowel syndrome, and hepatic encephalopathy. Synonyms: 16-Desmethyl-16-(hydroxymethyl)rifaximin; (2S, 16Z, 18E, 20S, 21S, 22R, 23R, 24R, 25S, 26R, 27S, 28E)-25-(Acetyloxy)-5, 6, 21, 23-tetrahydroxy-16-(hydroxymethyl)-27-methoxy-2, 4, 11, 20, 22, 24, 26-heptamethyl-2, 7-(epoxypentadeca(1, 11, 13)trienimino)benzofuro(4, 5-E)pyrido(1, 2-a)benzimidazole-1, 15(2H)-dione. Grades: 90%. CAS No. 1210022-90-4. Molecular formula: C43H51N3O12. Mole weight: 801.88. | |
| Rifaximin Imine-N-Oxide | Rifaximin Imine-N-Oxide is an impurity of Rifaximin. Rifaximin is a semi-synthetic, nonsystemic antibiotic derived from rifamycin SV with antibacterial activity. It also acts as a pregnane X receptor (PXR) agonist. It is approved for the treatment of traveler's diarrhea, irritable bowel syndrome, and hepatic encephalopathy. Synonyms: 2'-N-hydroxyrifampicin; Rifampicin N-oxide; 2'-N-Hydroxy-4-oxorifampicin. CAS No. 51963-55-4. Molecular formula: C43H58N4O13. Mole weight: 838.94. | |
| Rifabutin EP Impurity D | A derivative of Rifabutin.Rifabutin is an antibiotic used to treat tuberculosis and prevent and treat Mycobacterium avium complex. Synonyms: 3-Amino-1,4-dideoxy-1,4-dihydro-4-imino-1-oxorifamycin; 3-Amino-4-iminorifamycin S; 2, 7-(Epoxypentadeca[1, 11, 13]trienimino)naphtho[2, 1-b]furan, Rifamycin Deriv.; 3-Amino-4-deoxo-4-iminorifamycin S; 3-Amino-4-deoxy-4-iminorifamycin S; 3-Amino-1,4-dideoxy-1,4-dihydro-4-imino-1-oxorifamycin. Grades: 90%. CAS No. 62041-01-4. Molecular formula: C37H47N3O11. Mole weight: 709.8. | |
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