n-{[4-(1h-1,2,4-triazol-1-yl)phenyl]methylidene}hydroxylamine CAS 920502-11-0
| CAS No. | 920502-11-0 |
| Molecular Formula | C9H8N4O |
| Molecular Weight | 188.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
n-{[4-(1h-1,2,4-triazol-1-yl)phenyl]methylidene}hydroxylamine (CAS 920502-11-0) is a high-purity analytical reference standard with the molecular formula C9H8N4O and a molecular weight of 188.19 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, n-{[4-(1h-1,2,4-triazol-1-yl)phenyl]methylidene}hydroxylamine is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 188.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H8N4O |
| Molecular Weight | 188.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | 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.) | 1987 |
| Nitrogen Atoms | 4 |
Recommended Standards
- N-[(2-phenyl-2H-1,2,3-triazol-4-yl)methylidene]hydroxylamine (CAS 6206-85-5)
- N-phenyl-1H-1,2,3-triazole-5-carboxamide (CAS 936323-22-7)
- N-(4-(1H-Imidazol-2-yl)pyridin-3-yl)formamide (CAS 88128-94-3)
- Quinoxaline-2-carbohydrazide (CAS 54571-06-1)
- 3-(Tert-butyl)-1-(5-(trifluoromethyl)pyridin-2-yl)indeno[1,2-c]pyrazol-4(1H)-one (CAS 1024537-54-9)
- 3HPG (CAS 71301-82-1)
- 4-(Quinolin-3-yl)butan-2-one (CAS 497867-84-2)
- 2-Methyl-6-oxo-1,6-dihydropyridine-3,4-dicarbonitrile (CAS 400081-34-7)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (5-isopropyl-2-methylfuran-3-yl)boronate (CAS 2223039-55-0)
- 5-Chloro-3,6-dimethyl-1-[(4-methylphenyl)methyl]-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 1011399-21-5)
- N-(2-(Ethylamino)ethyl)-4-hydroxy-1-methyl-2-oxo-1,2-dihydroquinoline-3-carboxamide (CAS 376623-56-2)
- (S)-N-Boc-phenylalaninenitrile (S)-tert-butyl 1-cyano-2-phenylethylcarbamate 99281-90-0 A11319 (CAS 99281-90-0)
- 1-(3-Fluorophenyl)semicarbazide (CAS 57802-89-8)
- Staphylococcus Aureus Protein A (SpA)-Derived Peptide (H-2228.0005) (CAS 144979-26-0)
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