N-Demethyl-N-Nitroso Rifampicin CAS CATO-C4X-145610
| CAS No. | CATO-C4X-145610 |
| Molecular Formula | C42H55N5O13 |
| Molecular Weight | 837.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
N-Demethyl-N-Nitroso Rifampicin (CAS CATO-C4X-145610), molecular formula C42H55N5O13 and molecular weight 837.91 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, N-Demethyl-N-Nitroso Rifampicin (C42H55N5O13) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 18.0, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 837.91 g/mol, it falls into the high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C42H55N5O13 |
| Molecular Weight | 837.91 g/mol |
| Purity | >95% |
| 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
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Recommended Standards
- Ceftazidime Impurity 98 (CAS CATO-C4X-121298)
- N-Nitroso N-Desmethyl Rifampicin (CAS CATO-C4X-145615)
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- Rifandine (CAS 57184-22-2)
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- (S)-2-(tert-Butylamino)-1-(3-chlorophenyl)propan-1-one TFA (CAS 324548-43-8 (free base))
- Methyl (3R)-oxolane-3-carboxylate (CAS 191347-93-0)
- Benzyl N-[(1S,3R)-rel-3-hydroxycyclopentyl]carbamate (CAS 1932090-03-3)
- tert-Butyl 5-bromo-3-hydroxy-1H-indole-1-carboxylate (CAS 1318104-14-1)
- 4-(2,5-dimethyl-1-propyl-1H-pyrrol-3-yl)-N-(2-methoxyethyl)-1,3-thiazol-2-amine (CAS 1351527-35-9)
- C-Peptide (human) (CAS 33017-11-7)
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