Ethyl 7-(2-methoxy-2-oxoethyl)-4-(thiophene-2-sulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate CAS 866134-83-0
| CAS No. | 866134-83-0 |
| Molecular Formula | C18H19NO7S2 |
| Molecular Weight | 425.48 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 Ethyl 7-(2-methoxy-2-oxoethyl)-4-(thiophene-2-sulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate.
Ethyl 7-(2-methoxy-2-oxoethyl)-4-(thiophene-2-sulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate (CAS 866134-83-0) is a high-purity analytical reference standard with the molecular formula C18H19NO7S2 and a molecular weight of 425.48 g/mol.
Structurally, Ethyl 7-(2-methoxy-2-oxoethyl)-4-(thiophene-2-sulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate (C18H19NO7S2) 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 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 425.48 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Ethyl 7-(2-methoxy-2-oxoethyl)-4-(thiophene-2-sulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H19NO7S2 |
| Molecular Weight | 425.48 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
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