Rifaximin impurity 11 CAS 80621-88-1
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 80621-88-1 |
| Molecular Formula | C41H49N3O10 |
| Molecular Weight | 743.84 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Rifaximin impurity 11 (CAS 80621-88-1), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C41H49N3O10. Molecular weight: 743.84 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C41H49N3O10 |
| Molecular Weight | 743.84 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Nitrogen Atoms | 3 |
Related Rifaximin Standards
- Rifaximin EP Impurity F (CAS 14487-05-9)
- Rifaximin EP Impurity B (CAS 13929-35-6)
- Rifaximin Impurity B (CAS 1351775-03-5)
- Rifaximin EP Impurity G (CAS 80621-76-7)
- Rifaximin (CAS 80621-81-4)
- Rifaximin Impurity 12 (CAS CATO-C4X-150512)
- Rifaximin-d6(Major) (CAS 1262992-43-7)
- Rifaximin EP Impurity D (CAS CATO-C4X-15054)
Recommended Standards
- Phenylmethyl 2-(Acetylamino)-2-deoxy-6-O-(phenylmethyl)-3-O-(2,3,4,6-tetra-O-acetyl-beta-D-galactopyranosyl)-alpha-D-glucopyranoside (CAS 71208-12-3)
- 1217779-54-8 (2S)-2-{[(Benzyloxy)carbonyl]amino}-2-({[bis(benzyloxy)phosphoryl]oxy}methyl)-4-(4-octylphenyl)butyl acetate DTXSID30675684 (CAS 1217779-54-8)
- 5-Amino-5-deoxy-5-N-MMT-thymidine 3-CE phosphoramidite (CAS 194034-71-4)
- Safinamide Impurity 43 (CAS CATO-C4X-159043)
- Relugolix Impurity N1 (CAS 1801551-07-4)
- N-((5-(Benzofuran-2-yl)isoxazol-3-yl)methyl)benzo[d]thiazole-2-carboxamide (CAS 1208662-96-7)
- 4'-Nitro-2,2':6',2''-terpyridine (CAS 213674-46-5)
- 2-(2-Benzothiazolylamino)ethanol (CAS 18392-47-7)
- 1H-imidazol-2-yl(thiophen-2-yl)methanol (CAS 1378729-97-5)
- Hexapeptide-1 (CAS CATO-CPTD788821)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com