3-Bromo-4,6-dichloro-1H-pyrazolo[3,4-d]pyrimidine CAS 944902-17-4
| CAS No. | 944902-17-4 |
| Molecular Formula | C5HBrCl2N4 |
| Molecular Weight | 267.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Bromo-4,6-dichloro-1H-pyrazolo[3,4-d]pyrimidine (CAS 944902-17-4) is a high-purity analytical reference standard with the molecular formula C5HBrCl2N4 and a molecular weight of 267.90 g/mol.
Owing to a nitrile group, chlorine/bromine substitution, 3-Bromo-4,6-dichloro-1H-pyrazolo[3,4-d]pyrimidine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 267.90 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 3-Bromo-4,6-dichloro-1H-pyrazolo[3,4-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 | C5HBrCl2N4 |
| Molecular Weight | 267.90 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 |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 4 |
Related Bromo Standards
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Recommended Standards
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- trans-3-Isopropoxycyclobutanamine (CAS 1638764-20-1)
- (3R,4R)-tert-Butyl 3-amino-4-ethylpyrrolidine-1-carboxylate (CAS 1932517-95-7)
- (1-(4-Bromo-2-methoxyphenyl)cyclobutyl)methanol (CAS 1467061-68-2)
- 2-Amino-1-(4-hydroxypiperidin-1-yl)ethan-1-one (CAS 129999-43-5)
- Thymidine-5,5-d (CAS 132376-92-2)
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