3-bromo-7-chloro-2,5-dimethyl-6-(propan-2-yl)pyrazolo[1,5-a]pyrimidine CAS 1490900-71-4
| CAS No. | 1490900-71-4 |
| Molecular Formula | C11H13BrClN3 |
| Molecular Weight | 302.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-bromo-7-chloro-2,5-dimethyl-6-(propan-2-yl)pyrazolo[1,5-a]pyrimidine (CAS 1490900-71-4) is a high-purity analytical reference standard with the molecular formula C11H13BrClN3 and a molecular weight of 302.60 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine/bromine substitution, 3-bromo-7-chloro-2,5-dimethyl-6-(propan-2-yl)pyrazolo[1,5-a]pyrimidine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 302.60 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
As a certified reference material (CRM), 3-bromo-7-chloro-2,5-dimethyl-6-(propan-2-yl)pyrazolo[1,5-a]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 | C11H13BrClN3 |
| Molecular Weight | 302.60 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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 | 3 |
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Recommended Standards
- 2-Amino-6-bromo-2-(2-chlorophenyl)-cyclohexanone (CAS 79499-61-9)
- 2-(4-Chloro-3-fluoro-2-(methylthio)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1680200-85-4)
- 3-Cyclopropyl-1-(2,4,6-trichlorophenyl)-1H-pyrazol-5-amine (CAS 175137-50-5)
- 2,4,5-Trichloro-N-propylbenzene-1-sulfonamide (CAS 90347-34-5)
- 2-Bromo-5-methylhexanoic Acid (CAS 56256-78-1)
- 4-[(2-Aminophenyl)amino]-1-[3-[2-(4-fluorophenyl)-1,3-dioxolan-2-yl]propyl]pyridinium Chloride (CAS 65053-27-2)
- 3-Chloro-N-(2-((5-chloro-2-methoxyphenyl)amino)-2-oxoethyl)-N-cyclohexylbenzo[b]thiophene-2-carboxamide (CAS 337354-95-7)
- Febuxostat Impurity 75 (CAS 138330-01-5)
- 5'-(4-Formyl-3-methoxyphenyl)-3,3''-dimethoxy-[1,1':3',1''-terphenyl]-4,4''-dicarbaldehyde (CAS 2254817-04-2)
- 2-(Cyclooctylamino)propan-1-ol (CAS 1153893-81-2)
- 2-((1-(m-Tolyl)pyrrolidin-3-yl)oxy)ethanamine (CAS 1707571-01-4)
- 1-Phenyl-4-(4-phenylpiperazin-1-yl)-1H-pyrazolo[3,4-d]pyrimidine (CAS 393845-64-2)
- 2,2′-(1,3-Phenylene)bis[4,5-dihydro-4-(1-methylethyl)oxazole] (CAS 1222086-30-7)
- Des-Ser34-Gly33Tirzepatide (CAS CATO-CPTD788941)
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