N-(5-chloro-2-methoxyphenyl)-3-hydroxy-4-[[2-methoxy-5-[(phenylamino)carbonyl]phenyl]azo]naphthalene-2-carboxamide CAS 67990-05-0
| CAS No. | 67990-05-0 |
| Molecular Formula | C32H25ClN4O5 |
| Molecular Weight | 581.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 581.02 g/mol gives N-(5-chloro-2-methoxyphenyl)-3-hydroxy-4-[[2-methoxy-5-[(phenylamino)carbonyl]phenyl]azo]naphthalene-2-carboxamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
N-(5-chloro-2-methoxyphenyl)-3-hydroxy-4-[[2-methoxy-5-[(phenylamino)carbonyl]phenyl]azo]naphthalene-2-carboxamide (CAS 67990-05-0), molecular formula C32H25ClN4O5 and molecular weight 581.02 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C32H25ClN4O5, N-(5-chloro-2-methoxyphenyl)-3-hydroxy-4-[[2-methoxy-5-[(phenylamino)carbonyl]phenyl]azo]naphthalene-2-carboxamide contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 581.02 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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.
Physical & Chemical Properties
| Molecular Formula | C32H25ClN4O5 |
| Molecular Weight | 581.02 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 22.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
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Recommended Standards
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- Lifitegrast Impurity 16 (CAS 2322380-18-5)
- CAS 2260670-11-7 (CAS 2260670-11-7)
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- 4-Bromo-2-cyano-6-(difluoromethyl)pyridine-3-sulfonyl chloride (CAS 1805344-89-1)
- 3802-95-7 Azido(trifluoro)methane DTXSID00508298 (CAS 3802-95-7)
- rac-tert-butyl (3R,4S)-3-amino-4-(4-fluorophenyl)piperidine-1-carboxylate (CAS 1969288-48-9)
- 2-(4-Ethylmorpholin-2-yl)-N-methylethan-1-amine (CAS 1217862-96-8)
- 4,4'-Oxydibutanoic acid (CAS 7423-25-8)
- 4-(1-(Furan-2-yl)ethyl)-1H-imidazole (CAS 226570-98-5)
- 4-(2-Chloro-5-fluorophenyl)piperidine hydrochloride (CAS 1821329-21-8)
- tert-butyl 4-oxo-1,2-oxazolidine-2-carboxylate (CAS 2031259-21-7)
- 2-(tert-Butyl)-3-hydroxy-6-(trifluoromethyl)isoindolin-1-one (CAS 1242336-60-2)
- Des-Gln24-Tirzepatide (CAS CATO-CPTD788949)
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