2,4-dichloro-6-methylquinazoline CAS 39576-82-4
| CAS No. | 39576-82-4 |
| Molecular Formula | C9H6Cl2N2 |
| Molecular Weight | 213.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,4-dichloro-6-methylquinazoline (CAS 39576-82-4) is a high-purity analytical reference standard with the molecular formula C9H6Cl2N2 and a molecular weight of 213.06 g/mol.
2,4-dichloro-6-methylquinazoline (C9H6Cl2N2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, 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.
As a certified reference material (CRM), 2,4-dichloro-6-methylquinazoline 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 | C9H6Cl2N2 |
| Molecular Weight | 213.06 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related dichloro Standards
- 6,7-Dichloro-2-methylquinoxaline (CAS 108653-55-0)
- methyl 3,5-dichloro-1-methyl-1H-pyrazole-4-carboxylate (CAS 109056-69-1)
- 2,5-Dichloro-6-cyclopropylnicotinonitrile (CAS 1135283-17-8)
- 5,7-Dichloro-2-methyl-1,6-naphthyridine (CAS 1159811-67-2)
- 2,7-Dichloro-6-methylquinoxaline (CAS 1163123-60-1)
- 4,7-Dichloro-6-methylquinazoline (CAS 1187616-00-7)
- 2,6-Dichloro-4-methylquinazoline (CAS 1260798-81-9)
- 3,6-Dichloro-1H-indene-2-carbaldehyde (CAS 1314802-47-5)
Recommended Standards
- 2,4-Dichloro-6-methyl-1,5-naphthyridine (CAS 959007-01-3)
- 2,4-dichloro-8-methylquinazoline (CAS 39576-83-5)
- 2,4-Dichloro-5-methylquinazoline (CAS 78052-20-7)
- 2,4-Dichloroquinolin-5-amine (CAS 2091462-77-8)
- 3-(Thiophen-3-yl)azetidin-3-ol (CAS 1487656-44-9)
- 0300AD 1185297-82-8 3-(Cyclopentylmethoxy)pyrrolidine hydrochloride C10H20ClNO (CAS 1185297-82-8)
- 2-(4-Methoxyphenyl)thiazole-5-carbaldehyde (CAS 914348-82-6)
- 5-Methoxy-3,5-dioxopentanoic acid (CAS 78315-99-8)
- 1,3-Bis(2,6-diisopropylphenyl)imidazolium Chloride Hydrochloride (CAS 1453171-61-3)
- 7-Bromo-6-(trifluoromethyl)quinoxalin-2(1H)-one (CAS 1464091-65-3)
- Selenophene-2,5-dicarbaldehyde (CAS 13706-04-2)
- Decahydro-2H-benzo[b]azepin-2-one (CAS 146032-52-2)
- 1-(2-(2-Hydroxyphenyl)-4-morpholinopyrimidin-5-yl)butan-1-one (CAS 823792-98-9)
- Neuropeptide FF (CAS 99566-27-5)
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