3-Butyl-1-(4-(pyrrolidin-1-yl)but-2-yn-1-yl)quinazoline-2,4(1H,3H)-dione oxalate CAS 23905-28-4
| CAS No. | 23905-28-4 |
| Molecular Formula | C20H25N3O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Butyl-1-(4-(pyrrolidin-1-yl)but-2-yn-1-yl)quinazoline-2,4(1H,3H)-dione oxalate 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.
3-Butyl-1-(4-(pyrrolidin-1-yl)but-2-yn-1-yl)quinazoline-2,4(1H,3H)-dione oxalate (CAS 23905-28-4), molecular formula C20H25N3O2C2H2O4 and molecular weight 429.47 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-Butyl-1-(4-(pyrrolidin-1-yl)but-2-yn-1-yl)quinazoline-2,4(1H,3H)-dione oxalate (C20H25N3O2C2H2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 429.47 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C20H25N3O2 C2H2O4 |
| Molecular Weight | 429.47 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 3 |
Related Butyl Standards
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Recommended Standards
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- n-Isopropyl-1-methylpiperidin-4-amine (CAS 702670-14-2)
- 1-(2-Fluorophenyl)-4,5,6,7-tetrahydro-1H-indazol-4-amine (CAS 1367753-02-3)
- 2-(2,2-Dimethylpropyl)-1,3-thiazolidine-4-carboxylic acid (CAS 1214665-13-0)
- 2-(2-Methoxy-5-methylphenyl)propanoic acid (CAS 76650-25-4)
- (1R,2S,3R,4S)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)bicyclo[2.2.1]Heptane-2-carboxylic acid (CAS 352707-75-6)
- Semaglutide impurity 267 (CAS CATO-C4X-2226267)
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