5-Bromo-2-(tert-butyl)pyridine CAS 39919-58-9
| CAS No. | 39919-58-9 |
| Molecular Formula | C9H12BrN |
| Molecular Weight | 214.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Bromo-2-(tert-butyl)pyridine is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 5-Bromo-2-(tert-butyl)pyridine (CAS 39919-58-9), a certified reference material (molecular formula C9H12BrN, MW 214.10 g/mol) for analytical method development and quality control.
Structurally, 5-Bromo-2-(tert-butyl)pyridine (C9H12BrN) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, 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 214.10 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.
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), 5-Bromo-2-(tert-butyl)pyridine 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 | C9H12BrN |
| Molecular Weight | 214.10 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 methanol, acetonitrile, DMSO |
| 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.) | 1968 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
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- 1-(4-Bromo-3-methylphenyl)ethanamine (CAS 105321-46-8)
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Recommended Standards
- 5-bromo-2-(2-methylpropyl)pyridine (CAS 701934-82-9)
- 5-Bromo-2-isopropyl-4-methylpyridine (CAS 2060024-61-3)
- 5-(Bromomethyl)-2-isopropylpyridine (CAS 442910-41-0)
- 5-Bromo-2-isopropylaniline (CAS 923148-28-1)
- N-(sec-butyl)-3,4,5,6-tetrahydro-[2,3'-bipyridin]-2'-amine (CAS 1352509-58-0)
- Methyl 4-(azetidin-3-yloxy)benzoate hydrochloride (CAS 1956370-41-4)
- 7-Amino-1-methyl-3,4-dihydropyrrolo[4,3,2-de]quinolin-8(1H)-one (CAS 146555-78-4)
- Ranatensin (CAS 29451-71-6)
- 2-Fluorocyclopropanamine (CAS 105919-31-1)
- 4-(4-Methyl-4,5-dihydro-1H-imidazol-2-yl)aniline (CAS 868260-16-6)
- (2,8-Dimethylimidazo[1,2-b]pyridazin-6-yl)boronic acid (CAS 2254505-85-4)
- (S)-2,5-Diamino-2-methylpentanoic acid (CAS 48047-95-6)
- 4-(Difluoromethyl)-2,6-diiodo-3-methoxypyridine (CAS 1806824-71-4)
- Semaglutide impurity 75 (CAS CATO-C4X-222675)
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