3,4-Dibromopyridine CAS 13534-90-2
| CAS No. | 13534-90-2 |
| Molecular Formula | C5H3Br2N |
| Molecular Weight | 236.89 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 3,4-Dibromopyridine (CAS 13534-90-2), a certified reference material (molecular formula C5H3Br2N, MW 236.89 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H3Br2N, 3,4-Dibromopyridine contains a nitrile group, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 236.89 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.
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.
Physical & Chemical Properties
| Molecular Formula | C5H3Br2N |
| Molecular Weight | 236.89 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 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 |
| CAS Registry Year (est.) | 1960 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Dibromopyridine Standards
- 3,5-Dibromopyridine (CAS 625-92-3)
- 2,5-Dibromopyridine (CAS 624-28-2)
- 2,6-Dibromopyridine (CAS 626-05-1)
- 3,5-Dibromopyridine-d3 (CAS 1219799-05-9)
- 2,3-Dibromopyridine (CAS 13534-89-9)
- 58530-53-3 2,4-Dibromopyridine 2,4-Dibromo-pyridine BCP22110 (CAS 58530-53-3)
- 2,4-Dibromopyridine 1-oxide (CAS 117196-08-4)
- 2,3-Dibromopyridine 1-oxide (CAS 89167-27-1)
Recommended Standards
- Pentafluoroethylphosphonic acid dichloride (CAS 103304-97-8)
- 4-Chlorobutylzinc bromide (CAS 155589-48-3)
- Tert-butyl((5-chloropentyl)oxy)dimethylsilane (CAS 85514-44-9)
- 5-Bromo-2,4-difluorophenylboronic Acid (CAS 2096331-76-7)
- 3-((4-(4-Chlorophenyl)piperazin-1-yl)methyl)-1H-pyrrolo[2,3-b]pyridine hydrochloride (CAS 1173023-36-3)
- 5-Chloro-2-iodo-3-nitrobenzoic acid (CAS 855471-33-9)
- 4-(N,N-Dimethylaminomethyl)phenylboronic Acid Pinacol Ester (CAS 878197-87-6)
- 4-Amino-3-bromo-2-fluorobenzonitrile (CAS 2090323-74-1)
- 2-Amino-1-(2-iodophenyl)ethanol hydrochloride (CAS 118162-18-8)
- 2,4-Dichloro-5-[(2,6-dimethylmorpholin-4-yl)sulfonyl]benzoic acid (CAS 727674-93-3)
- Methyl (3R,4R)-4-isopropylpyrrolidine-3-carboxylate (CAS 1334406-73-3)
- 5-fluoropyrazolo[1,5-a]pyridine (CAS 1427433-74-6)
- 3-(5-Chloro-1-isobutyl-3-methyl-1H-pyrazol-4-yl)acrylic acid (CAS 882145-08-6)
- Semaglutide Impurity 189 (CAS CATO-C4X-2226189)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com