4-(7-Ethyl-1,4,5,6,7,8-hexahydro-4-oxo[1]benzothieno[2,3-d]pyrimidin-2-yl)benzoic acid CAS 743439-05-6
| CAS No. | 743439-05-6 |
| Molecular Formula | C19H18N2O3S |
| Molecular Weight | 354.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C19H18N2O3S, 4-(7-Ethyl-1,4,5,6,7,8-hexahydro-4-oxo[1]benzothieno[2,3-d]pyrimidin-2-yl)benzoic acid contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 354.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
4-(7-Ethyl-1,4,5,6,7,8-hexahydro-4-oxo[1]benzothieno[2,3-d]pyrimidin-2-yl)benzoic acid (CAS 743439-05-6) is a high-purity analytical reference standard with the molecular formula C19H18N2O3S and a molecular weight of 354.42 g/mol.
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 4-(7-Ethyl-1,4,5,6,7,8-hexahydro-4-oxo[1]benzothieno[2,3-d]pyrimidin-2-yl)benzoic acid 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 | C19H18N2O3S |
| Molecular Weight | 354.42 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
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