(E)-{[4-(4-chlorophenyl)-2,6-dioxocyclohexyl]methylidene}(methyl)oxidoazanium CAS 338399-41-0
| CAS No. | 338399-41-0 |
| Molecular Formula | C14H14ClNO3 |
| Molecular Weight | 279.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(E)-{[4-(4-chlorophenyl)-2,6-dioxocyclohexyl]methylidene}(methyl)oxidoazanium (CAS 338399-41-0) is a high-purity analytical reference standard with the molecular formula C14H14ClNO3 and a molecular weight of 279.72 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, (E)-{[4-(4-chlorophenyl)-2,6-dioxocyclohexyl]methylidene}(methyl)oxidoazanium is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 279.72 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C14H14ClNO3 |
| Molecular Weight | 279.72 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-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 chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related E Standards
- 4-{[(2-chlorophenyl)methyl]amino}-1-ethyl-1h-pyrazole-3-carboxylic acid (CAS 1006319-25-0)
- 1-(3-Chlorophenyl)-3-phenyl-1H-pyrazole-4-carbonitrile (CAS 1202030-65-6)
- Ethyl 5-(((3-chlorophenyl)amino)methyl)furan-2-carboxylate (CAS 1217034-54-2)
- 3-[(4-Chlorophenyl)methyl]-1,3,7-triazaspiro[4.4]nonane-2,4-dione (CAS 1514483-74-9)
- 2-(4-Chlorophenyl)-5-morpholino-2,4-dihydro-3H-pyrazol-3-one (CAS 92026-67-0)
- 3-(4-(4-Chlorophenyl)-2-ethyloxazol-5-yl)propanoic acid (CAS 89150-35-6)
- 4-({[(4-chlorophenyl)methyl]amino}methylidene)-3-(methoxymethyl)-4,5-dihydro-1H-pyrazol-5-one (CAS 240799-75-1)
- 4-(4-Chlorophenyl)-1-(2-hydroxyethyl)-2-methyl-1H-pyrrole-3-carboxylic acid (CAS 881040-21-7)
Recommended Standards
- (4S,4'S)-2,2'-(4-Chloropyridine-2,6-diyl)bis(4-methyl-4,5-dihydrooxazole) (CAS 860151-77-5)
- 1-(5-Chloro-2-methoxyphenyl)-2,5-dimethyl-1H-pyrrole-3-carboxylic acid (CAS 749219-31-6)
- (3aR,4S,9bS)-9-Chloro-6-methoxy-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinoline-4-carboxylic acid (CAS 956189-13-2)
- 1-Allyl-5-chlorospiro[indoline-3,2'-[1,3]dioxan]-2-one (CAS 853751-70-9)
- Ethyl 5-[3-amino-6-(2,3-dihydro-1,4-benzodioxin-6-yl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-amido]-4-cyano-3-methylthiophene-2-carboxylate (CAS 625377-78-8)
- 2,4-Difluoro-6-methylbenzonitrile (CAS 1803782-57-1)
- 6-((3-Methylcyclobutyl)methoxy)nicotinic acid (CAS 1394022-58-2)
- (S)-1-(3-fluoro-5-(trifluoromethyl)phenyl)pentan-1-amine (CAS 1213673-35-8)
- (E)-N-(4-((2-hydroxy-3-methoxybenzylidene)amino)phenyl)acetamide (CAS 303760-58-9)
- 3-methyl-2-phenylbutan-1-amine (CAS 196106-01-1)
- 2-(4-Nitro-1h-pyrazol-1-yl)-1-(3-nitrophenyl)ethan-1-one (CAS 1240572-03-5)
- 3-(4-bromophenyl)prop-2-en-1-amine hydrochloride (CAS 1864760-31-5)
- 3-Morpholino-3-phenylpropanoic acid (CAS 937652-66-9)
- D-[Ser]11-Semaglutide (CAS CATO-CPTD788629)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com