2-Bromo-5,7-dimethylpyrazolo[1,5-a]pyrimidine CAS 1198-78-3
| CAS No. | 1198-78-3 |
| Molecular Formula | C8H8BrN3 |
| Molecular Weight | 226.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 226.07 g/mol gives 2-Bromo-5,7-dimethylpyrazolo[1,5-a]pyrimidine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Bromo-5,7-dimethylpyrazolo[1,5-a]pyrimidine (CAS 1198-78-3), molecular formula C8H8BrN3 and molecular weight 226.07 g/mol, is a CATO reference standard with documented purity and traceability.
2-Bromo-5,7-dimethylpyrazolo[1,5-a]pyrimidine (C8H8BrN3) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures 2-Bromo-5,7-dimethylpyrazolo[1,5-a]pyrimidine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H8BrN3 |
| Molecular Weight | 226.07 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.) | 1957 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Bromo Standards
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Recommended Standards
- 3Bromo-7,8-dihydroquinolin-6(5H)-one (CAS 1196157-23-9)
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- 5-Bromo-2-methoxy-3-methylbenzonitrile (CAS 1211483-68-9)
- 2-(3-(Pentafluoro-lambda6-sulfanyl)phenyl)acetic acid (CAS 1211578-68-5)
- (5-(Difluoromethyl)-3-methyl-2-(trifluoromethoxy)pyridin-4-yl)methanamine (CAS 1804843-73-9)
- (3R)-3,4,4-trifluoropiperidine hydrochloride (CAS 2306253-87-0)
- 4-Oxo-4,5,6,7-tetrahydro-1-benzofuran-3-carboxylic acid (CAS 56671-28-4)
- Methyl 4-[(2,3-diethylquinoxalin-6-yl)oxy]benzoate (CAS 439110-70-0)
- 2-Bromo-6-(trifluoromethoxy)benzoic acid 403646-46-8 C8H4BrF3O3 Z0576 (CAS 403646-46-8)
- 2-Bromobenzo[d]oxazole-5-sulfonamide (CAS 1803740-57-9)
- 4-(2,5-Dimethoxyphenyl)-2-hydrazinylthiazole (CAS 886494-87-7)
- 5-Bromo-1-tert-butyl-6-fluorobenzotriazole (CAS 1365271-86-8)
- Des-Leu26-Tirzepatide (CAS CATO-CPTD788947)
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