8-Bromo-9-ethyl-9H-purin-6-amine CAS 21031-79-8
| CAS No. | 21031-79-8 |
| Molecular Formula | C7H8BrN5 |
| Molecular Weight | 242.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
8-Bromo-9-ethyl-9H-purin-6-amine (CAS 21031-79-8) is a high-purity analytical reference standard with the molecular formula C7H8BrN5 and a molecular weight of 242.08 g/mol.
Owing to a nitrile group, bromine substitution, an aromatic ring system, 8-Bromo-9-ethyl-9H-purin-6-amine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 242.08 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 8-Bromo-9-ethyl-9H-purin-6-amine 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 | C7H8BrN5 |
| Molecular Weight | 242.08 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 5 |
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- Sclareol glycol (CAS 55881-96-4)
- 3-Bromoimidazo[1,2-a]pyridine-2-carbaldehyde (CAS 59938-40-8)
- Semaglutide impurity 250 (CAS CATO-C4X-2226250)
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