3,4-Diamino-5-bromopyridine CAS 4635-08-9
| CAS No. | 4635-08-9 |
| Molecular Formula | C5H6BrN3 |
| Molecular Weight | 188.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 188.03 g/mol gives 3,4-Diamino-5-bromopyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 3,4-Diamino-5-bromopyridine (CAS 4635-08-9), a certified reference material (molecular formula C5H6BrN3, MW 188.03 g/mol) for analytical method development and quality control.
The molecular framework of 3,4-Diamino-5-bromopyridine (C5H6BrN3) is characterized by a nitrile group, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
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 | C5H6BrN3 |
| Molecular Weight | 188.03 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 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 | Br-containing |
| Nitrogen Atoms | 3 |
Related Diamino Standards
- 2,3-Diamino-6-bromopyridine (CAS 129012-04-0)
- 2,6-Diamino-5-chloronicotinic acid (CAS 465513-33-1)
- 3,5-Diamino-6-chloropicolinic acid (CAS 465513-12-6)
- 2,6-Diamino-5-propylpyrimidine-4-carboxylic acid (CAS 13166-62-6)
- 4,6-Diamino-5-nitropyrimidine-2(1H)-thione (CAS 98019-84-2)
- 2,3-Diamino-4-(difluoromethyl)pyridine-6-carboxaldehyde (CAS 1804710-83-5)
- 4,6-Diamino-5-(difluoromethyl)nicotinaldehyde (CAS 1804710-99-3)
- 4,5-Diamino-3-(difluoromethyl)picolinaldehyde (CAS 1804711-03-2)
Recommended Standards
- 2-Bromo-6-hydrazinopyridine (CAS 26944-71-8)
- 3-Bromo-2,6-diaminopyridine (CAS 54903-86-5)
- 2-Bromo-4-hydrazinylpyridine (CAS 923547-35-7)
- 3-Bromo-5-methylpyrazin-2-amine (CAS 74290-65-6)
- 2,8-Diaminononanedioic acid (CAS 98951-66-7)
- 2-((4-Methoxyphenyl)amino)thiazol-4(5h)-one (CAS 27052-12-6)
- 2-(1-Methyl-1h-imidazole-4-sulfonamido)acetic acid (CAS 1249411-93-5)
- 2-Chloro-n-(3,5-dimethyl-1h-pyrazol-4-yl)acetamide (CAS 774175-89-2)
- 7'-Amino-2',3'-dihydro-1'H-spiro[cyclopropane-1,4'-isoquinolin]-1'-one (CAS 2568928-19-6)
- 5-Fluoro-2’-O-methyl-4-(methylithio)uridine (CAS 869222-67-3)
- Clozapine (CAS 5786-21-0)
- N-(5-(3,4,5-Trimethoxyphenyl)-1,3,4-thiadiazol-2-yl)nicotinamide (CAS 1436006-00-6)
- 4-Hydrazinyl-2,5,8-trimethylquinoline hydrochloride (CAS 1172431-20-7)
- Semaglutide impurity 83 (CAS CATO-C4X-222683)
Why CATO?
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