5-Bromo-4,6-dimethyl-2(1H)-pyrimidinone CAS 7781-20-6
| CAS No. | 7781-20-6 |
| Molecular Formula | C6H7BrN2O |
| Molecular Weight | 203.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5-Bromo-4,6-dimethyl-2(1H)-pyrimidinone 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.
5-Bromo-4,6-dimethyl-2(1H)-pyrimidinone (CAS 7781-20-6), molecular formula C6H7BrN2O and molecular weight 203.04 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H7BrN2O, 5-Bromo-4,6-dimethyl-2(1H)-pyrimidinone contains an amide group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 203.04 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C6H7BrN2O |
| Molecular Weight | 203.04 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 4-Bromo-1-ethyl-1h-pyrazole-3-carbaldehyde (CAS 1001519-36-3)
- 4-Bromo-1-ethyl-1h-pyrazole-5-carbaldehyde (CAS 1001519-37-4)
- 3-Bromo-5,6-dimethyl-1,2-dihydropyrazin-2-one (CAS 100450-13-3)
- 2-Bromo-6-ethoxypyrazine (CAS 1027512-76-0)
- 2-Bromo-5-methoxypyridin-3-amine (CAS 1043688-99-8)
- 2-Bromo-5-ethoxypyrazine (CAS 1060803-83-9)
- 5-Bromo-N2-methyl-2,4-pyrimidinediamine (CAS 1074-49-3)
- 2-Bromo-4-methoxypyridin-3-amine (CAS 109613-97-0)
Recommended Standards
- 5-Bromo-3-methoxypyridin-2-amine, 97% (CAS 42409-58-5)
- 5-Bromo-4-hydrazinyl-6-methylpyrimidine (CAS 3438-58-2)
- 5-Bromo-2-methoxy-4-methylpyrimidine (CAS 38696-23-0)
- 5-Bromo-4-methoxy-6-methylpyrimidine (CAS 4319-87-3)
- 1-Methoxy-3,7-dimethylocta-2,6-diene (CAS 72152-72-8)
- 6-benzyl-1-nitrosotetrahydro-1H-pyrrolo[3,4-b]pyridine-5,7(6H,7aH)-dione (CAS CATO-C3D-26151)
- N-methyl-1-(4-(thiazol-2-yl)phenyl)methanamine (CAS 886851-31-6)
- 3-(5-Formyl-1,2,4-oxadiazol-3-yl)benzonitrile (CAS 944906-23-4)
- N-Cyclopropyl-4-methoxyaniline (CAS 263244-95-7)
- 2-({2-[(3-methoxyphenyl)amino]-2-oxoethyl}thio)benzoic acid (CAS 634170-32-4)
- 4-tert-Butyl-3-[(3-methoxyphenyl)methyl]-2,3,4,5-tetrahydro-1H-1,3,4-benzotriazepine-2,5-dione (CAS 866157-57-5)
- Methyl 3-((2,6-dichlorobenzyl)oxy)thieno[2,3-b]pyridine-2-carboxylate (CAS 338419-40-2)
- Spiro[2H-indene-2,3'-[3H]pyrrolo[2,3-b]pyridin]-2'(1'H)-one, 5-amino-1,3-dihydro-, (2S)- (CAS 939016-97-4)
- Serpent Peptide 2AcOH (CAS 823202-99-9(free base))
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