(2-Bromo-4-nitrophenyl)hydrazine CAS 72790-96-6
| CAS No. | 72790-96-6 |
| Molecular Formula | C6H6BrN3O2 |
| Molecular Weight | 232.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (2-Bromo-4-nitrophenyl)hydrazine 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-4-nitrophenyl)hydrazine (CAS 72790-96-6), molecular formula C6H6BrN3O2 and molecular weight 232.03 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H6BrN3O2, (2-Bromo-4-nitrophenyl)hydrazine 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 232.03 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), (2-Bromo-4-nitrophenyl)hydrazine 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 | C6H6BrN3O2 |
| Molecular Weight | 232.03 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 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.) | 1977 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Bromo Standards
- 2-Bromo-5-methyl-3-nitrophenol (CAS 100959-45-3)
- 2-Bromo-6-methoxynicotinic acid (CAS 1009735-25-4)
- 2-Bromo-4-methyl-5-nitrophenol (CAS 103448-24-4)
- 6-Bromo-4-methoxypicolinic acid (CAS 1060805-13-1)
- 6-Bromo-4-methoxynicotinic acid (CAS 1060805-14-2)
- 4-Bromo-6-methoxynicotinic acid (CAS 1060806-61-2)
- 6-Bromo-2-methoxynicotinic acid (CAS 1060806-62-3)
- 4-Bromo-6-methoxypicolinic acid (CAS 1060810-46-9)
Recommended Standards
- 2-((2-Bromopyrimidin-4-yl)amino)acetic acid (CAS 1956319-87-1)
- (2-Bromo-5-nitrophenyl)methanol (CAS 332883-48-4)
- 6-Bromo-5-methyl-3-nitropyridin-2-amine (CAS 1935493-93-8)
- (4-Bromo-2-nitrophenyl)hydrazine (CAS 59488-34-5)
- N-(4-((3-Bromophenyl)amino)quinazolin-6-yl)but-2-ynamide (CAS 194423-06-8)
- N-(4,6-Dimethylpyrimidin-2-yl)-4-methylbenzenesulfonamide (CAS 123458-65-1)
- 3-(4-Bromophenyl)-3-oxo-N,N,N-tripropylprop-1-en-1-aminium chloride (CAS 252367-64-9)
- methyl 4-amino-5-methyl-thiophene-3-carboxylate (CAS 81528-48-5)
- 2-(2-Fluorobenzylidene)malononitrile (CAS 2698-43-3)
- 7-Bromo-2-chloropyrido[3,2-d]pyrimidine (CAS 1234615-87-2)
- N-methyl-1-(3-methylazetidin-3-yl)methanesulfonamide (CAS 2168361-86-0)
- N,N-Diethyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-amine (CAS 1096689-45-0)
- Moxifloxacin impurity 172 (CAS CATO-C4X-1074172)
- Semaglutide impurity 195 (CAS CATO-C4X-2226195)
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