1-[7-(1-Benzothiophen-3-yl)-9-hydroxy-2,3-dihydro-1,4-benzoxazepin-4(5H)-yl]-2-hydroxy-1-ethanone CAS 1332205-02-3
| CAS No. | 1332205-02-3 |
| Molecular Formula | C19H17NO4S |
| Molecular Weight | 355.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-[7-(1-Benzothiophen-3-yl)-9-hydroxy-2,3-dihydro-1,4-benzoxazepin-4(5H)-yl]-2-hydroxy-1-ethanone (CAS 1332205-02-3) is a high-purity analytical reference standard with the molecular formula C19H17NO4S and a molecular weight of 355.41 g/mol.
Structurally, 1-[7-(1-Benzothiophen-3-yl)-9-hydroxy-2,3-dihydro-1,4-benzoxazepin-4(5H)-yl]-2-hydroxy-1-ethanone (C19H17NO4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 355.41 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).
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 | C19H17NO4S |
| Molecular Weight | 355.41 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Benzothiophen Standards
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Recommended Standards
- 2-{[5-(2-methylphenoxymethyl)-4-phenyl-4h-1,2,4-triazol-3-yl]sulfanyl}acetic acid (CAS 131142-10-4)
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- 1-(4-Hydroxy-7-phenylthieno[3,2-d]pyrimidin-2-yl)piperidine-3-carboxylic acid (CAS 1242985-61-0)
- 1-benzyl-N-(4-methanesulfonylphenyl)-1H-pyrazole-4-carboxamide (CAS 1354961-60-6)
- (E)-2-(Benzo[d]thiazol-2-yl)-3-(9-methyl-4-oxo-2-(m-tolyloxy)-4H-pyrido[1,2-a]pyrimidin-3-yl)acrylonitrile (CAS 620112-78-9)
- 4-Cyclopropoxy-N5-methylpyridine-2,5-dicarboxamide (CAS 1243468-88-3)
- (E)-3-(p-Tolyl)acryloyl chloride (CAS 13565-07-6)
- Ethyl [1,1'-biphenyl]-4-carboxylate (CAS 6301-56-0)
- 3-(Boc-amino)cyclobutanecarboxylic Acid (CAS 946152-72-3)
- (5-Chloro-2-fluorophenyl)(phenyl)methanamine (CAS 1016530-22-5)
- 4-((1-Methyl-2,4-dioxo-6-(3-phenylprop-1-yn-1-yl)-1,2-dihydroquinazolin-3(4H)-yl)methyl)benzoic acid (CAS 451471-51-5)
- n,n'-Dimethylisoxazole-4-carboximidamide (CAS 940000-15-7)
- 5-Amino-4,6-dimethoxypyrimidine (CAS 15846-15-8)
- Semaglutide Impurity 163 (x TFA Salt) (CAS CATO-C4X-2226163)
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