n-[1-(4-methoxyphenyl)ethylidene]hydroxylamine CAS 26358-63-4
| CAS No. | 26358-63-4 |
| Molecular Formula | C9H11NO2 |
| Molecular Weight | 165.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of n-[1-(4-methoxyphenyl)ethylidene]hydroxylamine is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
n-[1-(4-methoxyphenyl)ethylidene]hydroxylamine (CAS 26358-63-4), molecular formula C9H11NO2 and molecular weight 165.19 g/mol, is a CATO reference standard with documented purity and traceability.
n-[1-(4-methoxyphenyl)ethylidene]hydroxylamine (C9H11NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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.
CATO manufactures n-[1-(4-methoxyphenyl)ethylidene]hydroxylamine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H11NO2 |
| Molecular Weight | 165.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Nitrogen Atoms | 1 |
Related n Standards
- (Z)-[(4-Methoxyphenyl)methylidene](methyl)oxidoazanium (CAS 102972-06-5)
- (1Z)-1-(4-methoxyphenyl)ethanone oxime (CAS 2475-92-5)
- 1-(2-Methoxyphenyl)guanidine (CAS 61705-89-3)
- 1-(3-Methoxyphenyl)guanidine (CAS 57004-60-1)
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Recommended Standards
- N-(hydroxymethyl)-2-phenylacetamide (CAS 6291-06-1)
- N-[3-(Hydroxymethyl)phenyl]guanidine (CAS 437384-34-4)
- N-(5-hydroxy-2-methylphenyl)acetamide (CAS 71463-40-6)
- N-Ethyl-2-hydroxybenzamide (CAS 4611-42-1)
- 3-(Benzylamino-methyl)-7-methoxy-1H-quinolin-2-one (CAS 462067-61-4)
- Ethyl 2-amino-3-(2-ethyl-1h-imidazol-1-yl)-2-methylpropanoate (CAS 1249304-81-1)
- 4-(4,5-Dimethyl-1H-imidazol-1-yl)-2-methyl-6-(piperazin-1-yl)pyrimidine (CAS 1706454-58-1)
- 1-(4-Bromophenyl)-2-methyl-1-propanone (CAS 49660-93-7)
- 4-(4-Methoxyphenyl)pyrimidine (CAS 54095-18-0)
- Sodium (S)-2-amino-5-(((R)-1-((carboxymethyl)amino)-3-mercapto-1-oxopropan-2-yl)amino)-5-oxopentanoic acid (CAS 20167-21-9)
- N-(Benzo[d]thiazol-5-yl)ethanethioamide (CAS 1396866-10-6)
- 1-Difluoromethyl-4-ethynyl-3-methyl-1h-pyrazole (CAS 1855899-98-7)
- 4-Bromo-N-isopropyl-N-methylaniline (CAS 61684-98-8)
- endo-Gly31-Semaglutide (CAS CATO-C4X-2226282)
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