7-Bromo-2,4-dichloro-6-methylthieno[3,2-d]pyrimidine CAS 1469811-06-0
| CAS No. | 1469811-06-0 |
| Molecular Formula | C7H3BrCl2N2S |
| Molecular Weight | 297.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7-Bromo-2,4-dichloro-6-methylthieno[3,2-d]pyrimidine (CAS 1469811-06-0), molecular formula C7H3BrCl2N2S and molecular weight 297.99 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 7-Bromo-2,4-dichloro-6-methylthieno[3,2-d]pyrimidine (C7H3BrCl2N2S) contains a nitrile group, sulfur-containing functionality, chlorine/bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 297.99 g/mol, it falls into the medium-molecular-weight range. 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), 7-Bromo-2,4-dichloro-6-methylthieno[3,2-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 | C7H3BrCl2N2S |
| Molecular Weight | 297.99 g/mol |
| 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.) | 1992 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 5-Bromo-2,4-dichloro-6-methylthieno[2,3-d]pyrimidine (CAS 814919-17-0)
- 1-Bromo-4-butoxy-3,5,-dichlorobenzene (CAS 1242070-95-6)
- 5-Bromo-2-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1256360-43-6)
- 2-Bromo-3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1256360-64-1)
- 2-Bromo-4-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1309982-23-7)
- 2-Bromo-4-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1310404-49-9)
- 2-Bromo-5-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1310404-50-2)
- 2-Bromo-6-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1321518-06-2)
Recommended Standards
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- 3-Bromo-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (CAS 2223031-49-8)
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