Rifambutin Impurity 29 CAS CATO-C4X-25129
| CAS No. | CATO-C4X-25129 |
| Molecular Formula | C46H64N4O13 |
| Molecular Weight | 881.02 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Rifambutin Impurity 29 (CAS CATO-C4X-25129) is a certified pharmaceutical impurity reference standard with the molecular formula C46H64N4O13 and a molecular weight of 881.02 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Rifambutin Impurity 29 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 881.02 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Rifambutin Impurity 29 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C46H64N4O13 |
| Molecular Weight | 881.02 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Rifambutin Standards
Recommended Standards
- 2,2',2'',2'''-((15,35,55,75-Tetra-tert-butyl-1,3,5,7(1,3)-tetrabenzenacyclooctaphane-12,32,52,72-tetrayl)tetrakis(oxy))tetraacetic acid (CAS 113215-72-8)
- Ibrutinib Impurity N21 (CAS 2540665-98-1)
- Calcium-Like Peptide 3 (CAS 261969-05-5)
- Tris(triphenylphosphine)nickel chloride (CAS 15169-64-9)
- Finerenone Impurity 114 (CAS CATO-C4X-2880114)
- Butylphthalide Impurity 53 (CAS 122654-49-3)
- Methylprednisolone Acetate EP Impurity H (E-isomer) (CAS CATO-C4X-191946)
- 2,3,3-Triphenylacrylonitrile (CAS 7136-23-4)
- Methyl 2-[(2-aminoethyl)(methyl)amino]acetate dihydrochloride (CAS 1423028-03-8)
- 3-(1-Aminocyclohexyl)tetrahydrothiophene 1,1-dioxide (CAS 1468601-79-7)
- Isavuconazole Impurity 76 Chloride DiHCl (CAS CATO-C4X-123676)
- N-(Benzo[d]thiazol-2-yl)-5-(N-(thiophen-2-ylmethyl)sulfamoyl)furan-2-carboxamide (CAS 1171809-87-2)
- (5-Bromo-1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-acetic acid (CAS 5238-66-4)
- Neuropeptide W-23 (human) (CAS 383415-79-0)
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 18665070610 / Nicole.chen@cato-chem.com