3-(2-Chlorobenzyl)-9-((4-methoxybenzylidene)amino)-1-methyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione CAS 938802-74-5
| CAS No. | 938802-74-5 |
| Molecular Formula | C24H23ClN6O3 |
| Molecular Weight | 478.93 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.
3-(2-Chlorobenzyl)-9-((4-methoxybenzylidene)amino)-1-methyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione (CAS 938802-74-5), molecular formula C24H23ClN6O3 and molecular weight 478.93 g/mol, is a CATO reference standard with documented purity and traceability.
3-(2-Chlorobenzyl)-9-((4-methoxybenzylidene)amino)-1-methyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione (C24H23ClN6O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C24H23ClN6O3 |
| Molecular Weight | 478.93 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 6 |
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Recommended Standards
- 4-Amino-N-(1-((3-chloro-2-fluorophenyl)amino)-6-methylisoquinolin-5-yl)thieno[3,2-d]pyrimidine-7-carboxamide (CAS 1446113-23-0)
- Diethyl 4-((4-(4-chlorophenyl)-5-methylthiazol-2-yl)carbamoyl)benzylphosphonate (CAS 623152-06-7)
- N-Tetratriacontane (CAS 14167-59-0)
- Mitoxantrone EP Impurity C (CAS 1796928-50-1)
- 2-Phenylthiophene-3-carbaldehyde (CAS 38115-13-8)
- 3-Cyclopropoxy-2-methoxy-5-methylpyridine (CAS 1243440-04-1)
- 2-(1,2-benzothiazol-3-yl)ethan-1-ol (CAS 259110-30-0)
- H-D-Thr(tBu)-OH (CAS 201274-81-9)
- 3-(4-(Trifluoromethyl)phenyl)piperazin-2-one (CAS 185110-29-6)
- 2-Naphthalenesulfinic acid sodium salt (CAS 63735-42-2)
- 2-(Chloromethyl)-6-(difluoromethyl)-4-hydroxypyridine-3-carboxylic acid (CAS 1805999-18-1)
- Perfluorohexane Sulphonyl Fluoride (CAS 423-50-7)
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- Semaglutide Impurity 8 (CAS CATO-C4X-22268)
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