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| Product | Description | |
|---|---|---|
| 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 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 | 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. Grade: >95%. CAS No. 6998-60-3. Molecular formula: C37H47NO12. Mole weight: 697.77. | |
| 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. Grade: 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. Grade: 95%. CAS No. 14487-05-9. Molecular formula: C39H47NO14. Mole weight: 753.79. | |
| 25-Desacetyl Rifaximin-[d6] | 25-Desacetyl Rifaximin-[d6] is the labelled analogue of 25-Desacetyl Rifaximin, which is an impurity of Rifaximin. Rifaximin is an antibiotic used for the treatment of diarrhea caused by bacteria. Synonyms: 25-Desacetyl Rifaximin-d6; [2S-(2R*,16Z,18E,20R*,21R*,22S*,23S*,24S*,25R*,26R*,27R*,28E)]-5,6,21,23,25-Pentahydroxy-27-methoxy-2,4,11,16,20,22,24,26-octamethyl-2,7-(epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[1,2-a]benzimidazole-1,15(2H)-dione-d6; Desacetyl Rifaximin-d6. Grade: >95%. Molecular formula: C41H43D6N3O10. Mole weight: 749.88. | |
| (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 |
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