Doxofylline Moxastine CAS 21661-62-1
| CAS No. | 21661-62-1 |
| Molecular Formula | C18H23NO |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 484.00 g/mol gives Doxofylline Moxastine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Doxofylline Moxastine (CAS 21661-62-1), molecular formula C18H23NOC7H7ClN4O2 and molecular weight 484.00 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Doxofylline Moxastine (C18H23NOC7H7ClN4O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 484.00 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).
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.
As a certified reference material (CRM), Doxofylline Moxastine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C18H23NO C7H7ClN4O2 |
| Molecular Weight | 484.00 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Doxofylline Standards
- Doxofylline Impurity 20 (CAS 1021-65-4)
- Doxofylline Impurity 3 (CAS 1174289-18-9)
- Doxofylline-d6 (dimethyl-d6) (CAS 1219805-99-8)
- Doxofylline Impurity 8 (CAS 123524-29-8)
- Doxofylline-d4 (CAS 1346599-13-0)
- Doxofylline Impurity 6 (CAS 1429636-72-5)
- Doxofylline Impurity 1 (CAS 1429636-74-7)
- Doxofylline Impurity 24 (CAS 17743-04-3)
Recommended Standards
- 1,8-Dioxacyclotetradecane-2,7-dione (CAS 13926-69-7)
- Tert-butyln-(3-acetyl-1-bicyclo[1.1.1]pentanyl)carbamate (CAS 2201551-76-8)
- 4-[2-(4-Aminophenyl)ethyl]phenol (CAS 33384-05-3)
- 7-Fluoro-1H-benzo[d]imidazol-5-ol (CAS 1360920-90-6)
- 3-Fluoro-2-(1-piperazino)-benzaldehydehydrochloride (CAS 1185293-49-5)
- 2,2,2-Trichloroethyl (E)-(2-(furan-2-yl)vinyl)carbamate (CAS 338399-69-2)
- 5-(M-tolyl)pyrazin-2-amine (CAS 1159818-24-2)
- 1-ethynylspiro[3.5]nonan-1-ol (CAS 152568-23-5)
- 2-([3,2':6',3''-Terpyridin]-4'-yl)acetonitrile (CAS 1227513-94-1)
- a-Bag Cell Peptide (1-8) (CAS 87549-53-9)
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