Ethyl (E)-7-chloro-6-((hydroxyimino)methyl)-2-pentanamido-4,5-dihydrobenzo[b]thiophene-3-carboxylate CAS 352554-16-6
| CAS No. | 352554-16-6 |
| Molecular Formula | C17H21ClN2O4S |
| Molecular Weight | 384.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ethyl (E)-7-chloro-6-((hydroxyimino)methyl)-2-pentanamido-4,5-dihydrobenzo[b]thiophene-3-carboxylate (CAS 352554-16-6), a certified reference material (molecular formula C17H21ClN2O4S, MW 384.88 g/mol) for analytical method development and quality control.
Based on its molecular formula C17H21ClN2O4S, Ethyl (E)-7-chloro-6-((hydroxyimino)methyl)-2-pentanamido-4,5-dihydrobenzo[b]thiophene-3-carboxylate contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 384.88 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C17H21ClN2O4S |
| Molecular Weight | 384.88 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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 | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
- 8-Amino-N-(2-chlorophenyl)-3,4-dihydro-2H-1,4-ethanothieno[2,3-b][1,5]naphthyridine-7-carboxamide (CAS 902045-82-3)
- N-(4-chlorophenyl)-2-((7-cyano-3,4-dihydro-2H-1,4-ethano-1,5-naphthyridin-6-yl)thio)acetamide (CAS 723748-43-4)
- 5-Amino-N-(4-chlorophenyl)-7-thia-1,9-diazatetracyclo[9.2.2.0^{2,10}.0^{4,8}]pentadeca-2(10),3,5,8-tetraene-6-carboxamide (CAS 728003-26-7)
- Ilaprazole Impurity 154 (CAS CATO-C4X-1130154)
- 4-Methoxypyrrolo[2,1-f][1,2,4]triazine-7-carbaldehyde (CAS 1552475-25-8)
- 3-(2,6-Dichlorophenyl)-5-methyl-N-[4-(4-pentylcyclohexyl)phenyl]-1,2-oxazole-4-carboxamide (CAS 478041-41-7)
- Methyl 2-amino-3-(4-hydroxy-3-methoxyphenyl)propanoate (CAS 113948-28-0)
- Ethyl 2-(trans-4-aminocyclohexyl)acetate (CAS 76308-28-6)
- 1-(4-Methyl-2-((4,6,8-trimethylquinazolin-2-yl)amino)pyrimidin-5-yl)ethan-1-one (CAS 925645-95-0)
- 6-Chloro-N-(2-methoxyethyl)-2-pyrazinamine (CAS 1220016-30-7)
- Gibberellin A6 (CAS 19147-78-5)
- 1,5-Naphthyridin-2-amine1,5-naphthyridin-2-amine (CAS 17965-80-9)
- Clonazepam Impurity 5 (CAS 17714-02-2)
- Semaglutide impurity 235 (CAS CATO-C4X-2226235)
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