7-Nitro-10-octyl-3-phenylpyrimido[4,5-b]quinoline-2,4(3H,10H)-dione CAS 137346-42-0
| CAS No. | 137346-42-0 |
| Molecular Formula | C25H26N4O4 |
| Molecular Weight | 446.50 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.
7-Nitro-10-octyl-3-phenylpyrimido[4,5-b]quinoline-2,4(3H,10H)-dione (CAS 137346-42-0) is a high-purity analytical reference standard with the molecular formula C25H26N4O4 and a molecular weight of 446.50 g/mol.
Structurally, 7-Nitro-10-octyl-3-phenylpyrimido[4,5-b]quinoline-2,4(3H,10H)-dione (C25H26N4O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 446.50 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C25H26N4O4 |
| Molecular Weight | 446.50 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 4 |
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- Nickel Phosphide (CAS 12035-64-2)
- 2-(3-Isopropoxyphenyl)quinoline-4-carbohydrazide (CAS 524733-45-7)
- 4,5,6,7-Tetrahydro-1,3-benzothiazol-2-amine hydroiodide (CAS 118926-63-9)
- Tetradecyl sulfonate sodium salt (CAS 1191-50-0)
- 2,4-Difluoro-3-(methylthio)benzaldehyde (CAS 1891309-76-4)
- 2-(bromomethyl)-1,3,4-trifluoro-benzene (CAS 151412-02-1)
- Fmoc-β-Ala-Lys(Boc)-OH (CAS 1998700-95-0)
- O6-Benzyl Guanosine (CAS 4552-61-8)
- Pancreatic Polypeptide (31-36) Free Acid, human (CAS 192432-73-8)
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