2,6-Dichloro-8-methyl-9H-purine CAS 57476-37-6
| CAS No. | 57476-37-6 |
| Molecular Formula | C6H4Cl2N4 |
| Molecular Weight | 203.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2,6-Dichloro-8-methyl-9H-purine.
2,6-Dichloro-8-methyl-9H-purine (CAS 57476-37-6) is a high-purity analytical reference standard with the molecular formula C6H4Cl2N4 and a molecular weight of 203.03 g/mol.
Based on its molecular formula C6H4Cl2N4, 2,6-Dichloro-8-methyl-9H-purine contains a nitrile group, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 203.03 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.
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), 2,6-Dichloro-8-methyl-9H-purine 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 | C6H4Cl2N4 |
| Molecular Weight | 203.03 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
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- 5,7-Dichloro-1H-pyrrolo[2,3-c]pyridin-2(3H)-one (CAS 1279822-18-2)
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Recommended Standards
- 2,6-Dichloro-7-methylpurine (CAS 2273-93-0)
- 2,6-Dichloro-9-methyl-9H-purine (CAS 2382-10-7)
- 2,6-Dichloro-5-methoxynicotinonitrile (CAS 2089381-34-8)
- 2,7-Dichloroimidazo[1,2-c]pyrimidin-5-amine (CAS 27420-40-2)
- 2-((2-(1H-Imidazol-4-yl)ethyl)amino)propanenitrile (CAS 765840-64-0)
- 2-(Chloromethyl)-4b,5,6,7,8,8a-hexahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(1H)-one (CAS 1264045-14-8)
- (Z)-2-(Acenaphthylen-1(2H)-ylidene)tetrahydrofuran (CAS 88970-58-5)
- 4-Epialyxialactone (CAS 132339-37-8)
- Ochnaflavone (CAS 50276-96-5)
- 2-Amino-1-(2-((dimethylamino)methyl)piperidin-1-yl)ethanone (CAS 1353975-09-3)
- n-(4-Chloro-3-nitrophenyl)morpholine-4-carboxamide (CAS 349118-72-5)
- 6-Methoxypyrazine-2-boronic Acid (CAS 934346-27-7)
- 5-Methoxy-1H-benzo[d][1,2,3]triazole (CAS 27799-91-3)
- Tau Peptide (274-288) trifluoroacetate salt (CAS 330456-39-8)
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