5-Bromo-3-pyridylacetic acid CAS 39891-12-8
| CAS No. | 39891-12-8 |
| Molecular Formula | C7H6BrNO2 |
| Molecular Weight | 216.03 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-3-pyridylacetic acid.
5-Bromo-3-pyridylacetic acid (CAS 39891-12-8), molecular formula C7H6BrNO2 and molecular weight 216.03 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H6BrNO2, 5-Bromo-3-pyridylacetic acid contains an amide group, a carboxylic acid 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 216.03 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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-3-pyridylacetic acid 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 | C7H6BrNO2 |
| Molecular Weight | 216.03 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, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 5-Bromo-2-methoxynicotinaldehyde (CAS 103058-87-3)
- 6-BROMO-4-METHYL-PYRIDINE-2-CARBOXYLIC ACID (CAS 1060804-72-9)
- 6-Bromo-4-methylpyridine-3-carboxylic acid (CAS 1060804-74-1)
- 6-Bromo-4-methoxypicolinaldehyde (CAS 1060805-07-3)
- 6-Bromo-4-methoxynicotinaldehyde (CAS 1060805-10-8)
- 2-Bromo-4-methoxynicotinaldehyde (CAS 1060805-12-0)
- 4-Bromo-6-methylnicotinic acid (CAS 1060805-96-0)
- 6-Bromo-2-methylnicotinic Acid (CAS 1060805-97-1)
Recommended Standards
- 5-Bromo-2-nitrotoluene (CAS 52414-98-9)
- 5-Bromo-4-methoxypicolinaldehyde (CAS 870837-85-7)
- 5-Bromo-2-methylnicotinic Acid (CAS 351003-02-6)
- 5-Bromo-4-methylnicotinic Acid (CAS 677702-58-8)
- 1-Bromo-2,4-difluoro-5-nitrobenzene, 98% (CAS 345-24-4)
- 2,6-Di-tert-butyl-4-ethoxyphenol (CAS 5442-35-3)
- 2-(5-Benzoylthiophen-2-yl)acetonitrile (CAS 303144-54-9)
- 2-((5-((4-Methoxyphenyl)carbamoyl)-1,3,4-thiadiazol-2-yl)methoxy)acetic acid (CAS 1142202-78-5)
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