N'-acetyl-4-bromobenzohydrazide CAS 74038-71-4
| CAS No. | 74038-71-4 |
| Molecular Formula | C9H9BrN2O2 |
| Molecular Weight | 257.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), N'-acetyl-4-bromobenzohydrazide 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.
CATO supplies N'-acetyl-4-bromobenzohydrazide (CAS 74038-71-4), a certified reference material (molecular formula C9H9BrN2O2, MW 257.08 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution, N'-acetyl-4-bromobenzohydrazide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 257.08 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C9H9BrN2O2 |
| Molecular Weight | 257.08 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- N'-acetyl-2-bromobenzohydrazide (CAS 448205-18-3)
- N-Cyclopropyl 4-bromo-2-nitroaniline (CAS 887351-39-5)
- N-(4,6-Dichloropyrido[3,2-d]pyrimidin-2-yl)acetamide (CAS 897361-59-0)
- 898765-21-4 4-(2-Bromophenyl)-4-oxobutanoic acid DTXSID00645278 (CAS 898765-21-4)
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