5-Bromo-2-methylpyrimidine CAS 7752-78-5
| CAS No. | 7752-78-5 |
| Molecular Formula | C5H5BrN2 |
| Molecular Weight | 173.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-Bromo-2-methylpyrimidine.
CATO supplies 5-Bromo-2-methylpyrimidine (CAS 7752-78-5), a certified reference material (molecular formula C5H5BrN2, MW 173.01 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H5BrN2, 5-Bromo-2-methylpyrimidine contains a nitrile group, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 173.01 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H5BrN2 |
| Molecular Weight | 173.01 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 4-Bromo-2-methylpyrimidine (CAS 1114560-76-7)
- 2-Bromo-3-methylpyrazine (CAS 120984-76-1)
- 4-Bromo-5-methylpyrimidine (CAS 1257851-33-4)
- 3-Bromo-5-methylpyridazine (CAS 1257854-82-2)
- 2-Bromo-4-methylpyrimidine (CAS 130645-48-6)
- 4-Bromo-5-methylpyridazine (CAS 1368375-27-2)
- 3-Bromo-4-methylpyridazine (CAS 1416373-61-9)
- 5-Bromo-4-methylpyrimidine (CAS 1439-09-4)
Recommended Standards
- 5-(Bromomethyl)pyrimidine (CAS 25198-96-3)
- 3-Bromophenol (CAS 591-20-8)
- 4-Bromo-6-methylpyrimidine (CAS 69543-98-2)
- 4-Bromophenol (CAS 106-41-2)
- 1-((2R,3R,4R,5R)-3,4-Dihydroxy-5-(hydroxymethyl)-3-methyltetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione (CAS 119410-84-3)
- 5-Methyl-6-nitrobenzo[d][1,3]dioxole (CAS 32996-27-3)
- ((3R,4R,5S)-5-(((2R,4R,5R)-2-(4-amino-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-3-yl)oxy)-3,4-dihydroxytetrahydrofuran-2-yl)methyl dihydrogen phosphate (CAS 28050-13-7)
- 2-[(2-methylprop-2-en-1-yl)oxy]ethan-1-amine hydrochloride (CAS 1394041-09-8)
- 6-Bromo-2-(bromomethyl)benzaldehyde (CAS 1261581-83-2)
- Tert-butyl (R)-(1-hydroxy-5-methylhexan-3-yl)carbamate (CAS 944145-92-0)
- 5-Methylthiolane-2-carboxylic acid (CAS 1206675-27-5)
- N-(3,5-dimethylphenyl)-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxamide (CAS 955966-52-6)
- Isavuconazole impurity 70 (CAS CATO-C4X-1236170)
- D-Pro37-Tirzepatide (CAS CATO-CPTD788902)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com