5-Bromo-2,4-dichloro-6-methylpyrimidine CAS 56745-01-8
| CAS No. | 56745-01-8 |
| Molecular Formula | C5H3BrCl2N2 |
| Molecular Weight | 241.90 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-2,4-dichloro-6-methylpyrimidine.
5-Bromo-2,4-dichloro-6-methylpyrimidine (CAS 56745-01-8) is a high-purity analytical reference standard with the molecular formula C5H3BrCl2N2 and a molecular weight of 241.90 g/mol.
Structurally, 5-Bromo-2,4-dichloro-6-methylpyrimidine (C5H3BrCl2N2) contains a nitrile group, chlorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 241.90 g/mol, it falls into the medium-molecular-weight range. 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), 5-Bromo-2,4-dichloro-6-methylpyrimidine 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 | C5H3BrCl2N2 |
| Molecular Weight | 241.90 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 3-Bromo-2,5-dichlorophenol (CAS 1034709-00-6)
- 6-bromo-3,5-dichloropyridin-2-amine (CAS 105751-20-0)
- 5-Bromo-4,6-dichloro-2-methylpyrimidine (CAS 1086376-43-3)
- 4-Bromo-3,5-dichloropyridin-2-amine (CAS 1232430-80-6)
- 2-Bromo-5,6-dichloropyridin-3-amine (CAS 1253889-50-7)
- 2-Bromo-3,5-dichlorophenol (CAS 13659-22-8)
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- 5-Bromo-3,4-dichloropyridin-2-amine (CAS 1607837-98-8)
Recommended Standards
- 4-Bromo-2,6-dichlorophenol (CAS 3217-15-0)
- 5-Bromo-2,4-dichloropyridin-3-amine (CAS 503425-84-1)
- 3-Amino-6-bromo-2,4-dichloropyridine (CAS 237435-16-4)
- 2-(Trimethylstannyl)pyridine (CAS 13737-05-8)
- Ethyl 2-(3-amino-2,6-difluorophenyl)acetate (CAS 269072-28-8)
- Methyl 5-(3-Bromophenyl)isoxazole-3-carboxylate (CAS 745078-74-4)
- (R)-Methyl 2-(aminomethyl)pyrrolidine-2-carboxylate (CAS 708972-38-7)
- 2-Amino-5-bromothiazole-4-carboxylic acid (CAS 858486-46-1)
- 3-Ethyl-n1,5-dimethyl-1h-pyrazole-4,5-diamine (CAS 1483264-39-6)
- 1-Bromo-4-(2-methoxyethyl)benzene (CAS 60835-90-7)
- 1-Methyl-1,8-diazaspiro[4.5]decane dihydrochloride (CAS 1432679-85-0)
- 5-Isopropyl-5-methyl-2-phenylmorpholine (CAS 2007689-51-0)
- 2-[(2-methyl-2,3-dihydro-1H-indol-1-yl)methyl]furan-3-carboxylic acid (CAS 1156139-50-2)
- Des-Ala28-Tirzepatide (CAS CATO-CPTD788945)
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