(E)-1-(4-chlorophenyl)-2-((4-methoxyphenyl)sulfonyl)ethan-1-one O-methyl oxime CAS 320422-61-5
| CAS No. | 320422-61-5 |
| Molecular Formula | C16H16ClNO4S |
| Molecular Weight | 353.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (E)-1-(4-chlorophenyl)-2-((4-methoxyphenyl)sulfonyl)ethan-1-one O-methyl oxime.
(E)-1-(4-chlorophenyl)-2-((4-methoxyphenyl)sulfonyl)ethan-1-one O-methyl oxime (CAS 320422-61-5) is a high-purity analytical reference standard with the molecular formula C16H16ClNO4S and a molecular weight of 353.82 g/mol.
Structurally, (E)-1-(4-chlorophenyl)-2-((4-methoxyphenyl)sulfonyl)ethan-1-one O-methyl oxime (C16H16ClNO4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 353.82 g/mol, it falls into the moderately-high-molecular-weight range. 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.
As a certified reference material (CRM), (E)-1-(4-chlorophenyl)-2-((4-methoxyphenyl)sulfonyl)ethan-1-one O-methyl oxime 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.
Physical & Chemical Properties
| Molecular Formula | C16H16ClNO4S |
| Molecular Weight | 353.82 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related E Standards
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Recommended Standards
- Methyl 2-chloro-4-[2-(dimethylsulfamoyl)phenyl]benzoate (CAS 1820665-20-0)
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- NS13001, 98% (HPLC) (CAS 1063331-94-1)
- 1,2-Diiodotetrafluoroethane (CAS 354-65-4)
- 3-Phenyl-2-(thiophene-2-carboxamido)propanoic acid (CAS 381214-41-1)
- 3-(Carboxymethyl)-1-methylpyrrolidine-3-carboxylic acid (CAS 1447966-02-0)
- 6-Fluoro-[2,3'-bipyridine]-5'-carbonitrile (CAS 1346686-97-2)
- 3-(3-Bromophenyl)-1-(2-cyanoethyl)-1h-pyrazole-4-carboxylic acid (CAS 956411-55-5)
- Desmethyl doxorubicin (14-Hydroxycarminomycin) (CAS 69401-50-9)
- N-benzyl-6,7-dimethoxyquinazolin-4-amine (CAS 21561-11-5)
- (2-Fluoro-3-isopropoxyphenyl)(methyl)sulfane (CAS 2404733-85-1)
- 2-(Piperidin-4-yloxy)acetamide (CAS 912761-65-0)
- Ethyl 4-fluoro-3-oxo-1-azabicyclo[2.2.2]octane-2-carboxylate (CAS 2682935-81-3)
- Dulaglutide (CAS 923950-08-7)
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