2,4-Dichloro-5,7-dihydro-7-methylfuro[3,4-d]pyrimidine CAS 1429309-52-3
| CAS No. | 1429309-52-3 |
| Molecular Formula | C7H6Cl2N2O |
| Molecular Weight | 205.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H6Cl2N2O, 2,4-Dichloro-5,7-dihydro-7-methylfuro[3,4-d]pyrimidine contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 205.04 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
2,4-Dichloro-5,7-dihydro-7-methylfuro[3,4-d]pyrimidine (CAS 1429309-52-3), molecular formula C7H6Cl2N2O and molecular weight 205.04 g/mol, is a CATO reference standard with documented purity and traceability.
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), 2,4-Dichloro-5,7-dihydro-7-methylfuro[3,4-d]pyrimidine 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 | C7H6Cl2N2O |
| Molecular Weight | 205.04 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichloro Standards
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- 3’,4’-Dichloro-2-hydroxyacetophenone (CAS 113337-38-5)
- 2,5-Dichloro-3-methylbenzoic acid (CAS 1160573-37-4)
- 2,3-Dichloro-4-methylbenzoic acid (CAS 1254073-62-5)
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Recommended Standards
- 2,6-Dichloro-5-methylnicotinamide (CAS 142266-60-2)
- 3,5-Dichloro-1-cyclopropylpyrazin-2(1H)-one (CAS 1437385-37-9)
- (5-(Pyridin-3-yl)thiophen-2-yl)boronic acid (CAS 1421762-96-0)
- 2,4-Dichloro-5-methoxy-6-vinylpyrimidine (CAS 1446253-03-7)
- (S)-2-(4-bromo-2-fluoro-5-methylphenyl)pyrrolidine (CAS 1704003-43-9)
- 2-((3,3-Dimethylbutoxy)methyl)butane-1-sulfonyl chloride (CAS 1479725-85-3)
- 7-(Benzyloxy)quinoline-4-carbonitrile (CAS 1630025-67-0)
- 4-fluorobutanenitrile (CAS 407-83-0)
- 1-(2-Chlorophenyl)-3-(4-(methylthio)phenyl)propan-1-one (CAS 898781-48-1)
- N-(4-Sulfamoylphenyl)isobutyramide (CAS 114841-20-2)
- 6-Methoxy-2,3-dimethylaniline (CAS 190908-09-9)
- Flunarizine Impurity 16 (CAS 345-90-4)
- 1-(4-Nitrophenyl)cyclobutanecarboxamide (CAS 1359656-34-0)
- Semaglutide Impurity 183 (CAS 159541-28-3)
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