2-(sec-butyl)-4-chloro-6-methylpyrimidine CAS 1273744-22-1
| CAS No. | 1273744-22-1 |
| Molecular Formula | C9H13ClN2 |
| Molecular Weight | 184.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(sec-butyl)-4-chloro-6-methylpyrimidine (CAS 1273744-22-1), molecular formula C9H13ClN2 and molecular weight 184.67 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 2-(sec-butyl)-4-chloro-6-methylpyrimidine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 184.67 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), 2-(sec-butyl)-4-chloro-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 | C9H13ClN2 |
| Molecular Weight | 184.67 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.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- 1-(4-Chloropyridin-2-yl)-2-methylpropan-1-amine (CAS 1270571-32-8)
- 4-(Tert-butyl)-6-chloro-2-methylpyrimidine (CAS 128939-55-9)
- 4-Chloro-5-isopropyl-2,6-dimethylpyrimidine (CAS 1256955-96-0)
- 4-Chloro-6-neopentylpyrimidine (CAS 1308869-67-1)
- 4-[4-(ethoxycarbonyl)-5-methyl-1H-pyrazol-1-yl]benzoic acid (CAS 877675-70-2)
- Potassium 2-acetamidosuccinate (CAS 3397-52-2)
- (E)-MEthyl 3-(1-pivaloyl-2,3-dihydro-1h-pyrido[2,3-b][1,4]oxazin-6-yl)acrylate (CAS 1228670-39-0)
- 3-Amino-3-(2-chloropyridin-4-yl)propan-1-ol (CAS 1270463-53-0)
- 2-(6-Nitro-4-oxoquinazolin-3(4h)-yl)acetic acid (CAS 94242-57-6)
- 6-Chloro-N-(4-ethylphenyl)nicotinamide (CAS 1019118-23-0)
- 4-Amino-6-(difluoromethyl)pyrimidine-2-thiol (CAS 1706442-53-6)
- 7,9-Dichloro-2-(4-methoxyphenyl)-5-phenyl-5,10b-dihydro-1H-benzo[e]pyrazolo[1,5-c][1,3]oxazine (CAS 303061-33-8)
- Tert-butyl (R)-(4-(1-amino-2-hydroxyethyl)phenyl)carbamate (CAS 1213660-33-3)
- Neuropeptide Y (3-36) (porcine) trifluoroacetate salt (CAS 143863-88-1)
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