2-Bromo-5-ethyl-4-nitropyridine CAS 1804897-58-2
| CAS No. | 1804897-58-2 |
| Molecular Formula | C7H7BrN2O2 |
| Molecular Weight | 231.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Bromo-5-ethyl-4-nitropyridine is closely related to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-Bromo-5-ethyl-4-nitropyridine (CAS 1804897-58-2) is a high-purity analytical reference standard with the molecular formula C7H7BrN2O2 and a molecular weight of 231.05 g/mol.
Structurally, 2-Bromo-5-ethyl-4-nitropyridine (C7H7BrN2O2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 231.05 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-Bromo-5-ethyl-4-nitropyridine 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 | C7H7BrN2O2 |
| Molecular Weight | 231.05 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 sealed and dry, 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; Hygroscopic; reseal immediately after opening; 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.) | 1995 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 3-Bromo-2-methyl-5-nitroaniline (CAS 1000342-34-6)
- 2-Bromo-5-methyl-3-nitroaniline (CAS 102169-98-2)
- 2-Bromo-4-methyl-5-nitroaniline (CAS 102169-99-3)
- n-(5-Bromo-2-hydroxypyridin-3-yl)acetamide (CAS 102170-55-8)
- 2-Bromo-6-methyl-4-nitroaniline (CAS 102170-56-9)
- (E)-5-bromo-3-methoxypicolinaldehyde oxime (CAS 1087659-33-3)
- N-(6-Bromo-2-methoxypyridin-3-yl)formamide (CAS 1123194-96-6)
- 5-Bromo-N-methoxypyridine-3-carboxamide (CAS 1137063-16-1)
Recommended Standards
- 3-bromo-4-methyl-2-nitroaniline (CAS 1803582-59-3)
- Ethyl 4-bromopyrimidine-5-carboxylate (CAS 1805142-23-7)
- Methyl 6-Amino-5-bromonicotinate (CAS 180340-70-9)
- 2-Bromo-3-methyl-6-nitroaniline (CAS 1805219-74-2)
- (2R,3R)-3-Amino-2-hydroxy-3-(4-(trifluoromethyl)phenyl)propanoic acid (CAS 1217845-38-9)
- 6-(3-Bromophenoxy)pyridin-3-amine (CAS 954567-75-0)
- 8-Methyl-2-(4-methyl-3-nitrophenyl)imidazo[1,2-a]pyridine-3-carbaldehyde (CAS 1215950-83-6)
- N-(4-(3-Methyl-1,2,4-oxadiazol-5-yl)phenyl)thiophene-2-carboxamide (CAS 1223894-48-1)
- 4-Hydrazinyl-2-(trifluoromethyl)benzonitrile hydrochloride (CAS 1023649-53-7)
- 2-amino-2-phenyl-N-(thiophen-2-ylmethyl)acetamide (CAS 1218009-07-4)
- tert-Butyl 2-methyl-3a,6,7,7a-tetrahydrooxazolo[5,4-c]pyridine-5(4H)-carboxylate (CAS 1272758-03-8)
- 2-Phenylisoindolin-1-imine hydrobromide (CAS 113918-59-5)
- 4,4'-Oxybis(chlorobenzene) (CAS 2444-89-5)
- [Formaldehyde Schiff-base]-Semaglutide Impurity 136 X TFA Salt (CAS CATO-C4X-2226136)
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