2,4-Dichloro-N-methylpyrimidin-5-amine CAS 3546-51-8
| CAS No. | 3546-51-8 |
| Molecular Formula | C5H5Cl2N3 |
| Molecular Weight | 178.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 2,4-Dichloro-N-methylpyrimidin-5-amine (CAS 3546-51-8), a certified reference material (molecular formula C5H5Cl2N3, MW 178.02 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H5Cl2N3, 2,4-Dichloro-N-methylpyrimidin-5-amine contains a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 178.02 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C5H5Cl2N3 |
| Molecular Weight | 178.02 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.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Dichloro Standards
- 2,6-Dichloro-4-pyridinemethanol (CAS 101990-69-6)
- 2,3-Dichloro-4-methoxypyridine (CAS 1033203-57-4)
- 2,6-Dichloro-3-hydrazinylpyridine (CAS 1035173-57-9)
- 4,6-Dichloro-N-methylpyrimidin-2-amine (CAS 10397-15-6)
- 3,5-Dichloro-2-hydrazinopyridine (CAS 104408-23-3)
- (4,5-Dichloro-3-pyridinyl)methanol (CAS 1056162-12-9)
- 4,5-Dichloro-2-methylpyridine 1-oxide (CAS 108005-02-3)
- 2,5-Dichloro-4-methoxypyridine (CAS 1122090-95-2)
Recommended Standards
- 2,4-Dichloro-6-ethyl-1,3,5-triazine (CAS 698-72-6)
- 2,4-Dichloropyridine-3-methanol (CAS 945543-24-8)
- 2,4-Dichloro-3-methoxypyridine (CAS 405143-46-6)
- 2,5-Dichloro-4-Pyridinemethanol (CAS 866039-42-1)
- 2-(9-Chloro-3,4-dihydro-2h-benzo[b][1,4]dioxepin-7-yl)-N-methylethan-1-amine (CAS 1339055-31-0)
- 5-Hydroxy-2,2-dimethyl-2H-chromene-6-carbaldehyde (CAS 54287-99-9)
- 5-(4-Bromophenyl)-1-(3-(trifluoromethyl)phenyl)-1H-imidazole-2-thiol (CAS 1105189-91-0)
- 4-Bromo-5-hydroxy-2,3-dihydro-1H-inden-1-one (CAS 896132-97-1)
- N,N-dimethyl-3-(thietan-3-ylamino)propanamide (CAS 1860614-67-0)
- Rel-ethyl (1S,2R,5R)-3-azabicyclo[3.1.0]hexane-2-carboxylate (CAS 76155-34-5)
- 9-[(tert-butoxy)carbonyl]-4-oxo-3,9-diazaspiro[5.5]undecane-1-carboxylic acid (CAS 1357353-26-4)
- 3-(Hexyloxy)-N-(4-methoxyphenethyl)aniline (CAS 1040682-44-7)
- Organic Acid Salt Standard - Chromate (CAS 11104-59-9)
- Gastric Inhibitory Polypeptide (1-30) amide (porcine) (CAS 134846-93-8)
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