4-Chloro-6-(hydroxymethyl)quinazoline CAS 648449-06-3
| CAS No. | 648449-06-3 |
| Molecular Formula | C9H7ClN2O |
| Molecular Weight | 194.62 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.
4-Chloro-6-(hydroxymethyl)quinazoline (CAS 648449-06-3), molecular formula C9H7ClN2O and molecular weight 194.62 g/mol, is a CATO reference standard with documented purity and traceability.
4-Chloro-6-(hydroxymethyl)quinazoline (C9H7ClN2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C9H7ClN2O |
| Molecular Weight | 194.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 5-Chloro-6-methyl-7H-pyrrolo[2,3-b]pyridine-3-carbaldehyde (CAS 1000340-13-5)
- 4-Chloro-7-methyl-1H-indazole-3-carbaldehyde (CAS 1000340-67-9)
- 6-(4-Chloro-1H-pyrazol-1-yl)pyridin-3-amine (CAS 1006961-40-5)
- 4-Chloro-1-methyl-1,8-naphthyridin-2(1H)-one (CAS 1009360-86-4)
- 4-Chloro-6-(4-methylpyrazol-1-yl)pyrimidine (CAS 1015845-71-2)
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Recommended Standards
- 4-Chloro-6-(furan-3-yl)-2-methylpyrimidine (CAS 569658-33-9)
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- 4-Chloro-6-(cyclopropylamino)pyrimidine-5-carbonitrile (CAS 872890-13-6)
- 4-Chloro-8-methoxycinnoline (CAS 817209-48-6)
- 1-(3-Fluoropyridin-4-yl)ethan-1-amine (CAS 1270361-88-0)
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- N-Methyl-N-((tetrahydrofuran-2-yl)methyl)ethanamine (CAS 511520-06-2)
- (2Z)-3-[(2,3-dimethylphenyl)carbamoyl]prop-2-enoic Acid (CAS 198220-51-8)
- Dihydromethysticin (CAS 6581-46-0)
- 1-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)(methyl)amino)-3,3-dimethylazetidin-2-one (CAS 303985-98-0)
- 2-(4-Chloro-5-hydroxypyridin-2-yl)acetic acid (CAS 1807212-55-0)
- 3-(5-methoxy-4-oxo-4H-pyran-2-yl)prop-2-enoic acid (CAS 72612-21-6)
- Semaglutide Impurity 21(HO-Ste-L-γGlu-AEEA-AEEA-OH) (CAS 1335440-44-2)
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