(E)-N-[(2,4-dichloro-1-phenyl-1H-imidazol-5-yl)methylidene]hydroxylamine CAS 1181471-86-2
| CAS No. | 1181471-86-2 |
| Molecular Formula | C10H7Cl2N3O |
| Molecular Weight | 256.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, (E)-N-[(2,4-dichloro-1-phenyl-1H-imidazol-5-yl)methylidene]hydroxylamine (C10H7Cl2N3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 256.09 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
(E)-N-[(2,4-dichloro-1-phenyl-1H-imidazol-5-yl)methylidene]hydroxylamine (CAS 1181471-86-2), molecular formula C10H7Cl2N3O and molecular weight 256.09 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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 | C10H7Cl2N3O |
| Molecular Weight | 256.09 g/mol |
| Appearance | Pale yellow to 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
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- 2,6-Dichloro-N-(1H-pyrazol-5-yl)benzamide (CAS 1248062-25-0)
- 4-(propan-2-yl)azepane (CAS 1306606-61-0)
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- 2-(3,3-Diethoxypropyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 165904-27-8)
- 5-(2-phenylethynyl)thiophene-2-carbaldehyde (CAS 17257-10-2)
- 6-Fluoro-1-methyl-1,2,3,4-tetrahydroquinoline (CAS 388078-35-1)
- Chlorhexidine Impurity 38 TFA Salt (CAS CATO-C4X-225638)
- Prosaikogenin F (CAS 99365-20-5)
- 6-Fluoro-2-(4-propoxyphenyl)-2H-benzo[d][1,2,3]triazol-5-amine (CAS 1706461-68-8)
- Poly(1-butene-1,4-diyl) (CAS 25038-44-2)
- semaglutide (CAS 782487-28-9)
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