Ethyl 2-acetamido-5-(benzo[d][1,3]dioxol-5-ylmethyl)-4-methylthiophene-3-carboxylate CAS 377764-57-3
| CAS No. | 377764-57-3 |
| Molecular Formula | C18H19NO5S |
| Molecular Weight | 361.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 2-acetamido-5-(benzo[d][1,3]dioxol-5-ylmethyl)-4-methylthiophene-3-carboxylate (C18H19NO5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Ethyl 2-acetamido-5-(benzo[d][1,3]dioxol-5-ylmethyl)-4-methylthiophene-3-carboxylate (CAS 377764-57-3) is a high-purity analytical reference standard with the molecular formula C18H19NO5S and a molecular weight of 361.41 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.
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 | C18H19NO5S |
| Molecular Weight | 361.41 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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- Okadaicacidammoniumsalt (CAS 155716-06-6)
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- 1-(2-(Pyrrolidin-3-yloxy)ethyl)piperidine (CAS 70001-70-6)
- D-Ile17-Tirzepatide (CAS CATO-CPTD788917)
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