7-methoxy-2,3,4,5-tetrahydro-1-benzoxepin-5-one CAS 55580-00-2
| CAS No. | 55580-00-2 |
| Molecular Formula | C11H12O3 |
| Molecular Weight | 192.21 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 7-methoxy-2,3,4,5-tetrahydro-1-benzoxepin-5-one.
CATO supplies 7-methoxy-2,3,4,5-tetrahydro-1-benzoxepin-5-one (CAS 55580-00-2), a certified reference material (molecular formula C11H12O3, MW 192.21 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 7-methoxy-2,3,4,5-tetrahydro-1-benzoxepin-5-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 192.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), 7-methoxy-2,3,4,5-tetrahydro-1-benzoxepin-5-one 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 | C11H12O3 |
| Molecular Weight | 192.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
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Recommended Standards
- 7-Hydroxy-3,3-dimethylchroman-4-one (CAS 864866-90-0)
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- 7-Hydroxy-1,2,3,4-tetrahydronaphthalene-2-carboxylic acid (CAS 31846-36-3)
- 7-Nitro-1,2,3,4-tetrahydronaphthalen-1-amine (CAS 211372-31-5)
- 3-Chloro-5-fluorobenzohydrazide (CAS 1219921-71-7)
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