Diethyl 2-Acetamido-2-(Benzo(B)Thiophene-3-Ylmethyl)Malonate CAS 23906-20-9
| CAS No. | 23906-20-9 |
| Molecular Formula | C18H21NO5S |
| Molecular Weight | 363.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Diethyl 2-Acetamido-2-(Benzo(B)Thiophene-3-Ylmethyl)Malonate (CAS 23906-20-9), molecular formula C18H21NO5S and molecular weight 363.43 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H21NO5S, Diethyl 2-Acetamido-2-(Benzo(B)Thiophene-3-Ylmethyl)Malonate contains a flavonoid 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 363.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C18H21NO5S |
| Molecular Weight | 363.43 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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- 1-(chloromethoxy)-1H-benzo[d][1,2,3]triazole (CAS 3912-23-0)
- Poly(oxy-1,2-ethanediyl), .alpha.-[2-(dimethylamino)ethyl]-.omega.-[(1,1,3,3-tetramethylbutyl)phenoxy]- (CAS 70247-98-2)
- 1H-1,2,4-Triazole-3,5-dicarboxylic acid (CAS 34550-41-9)
- 2H-Thieno[2,3-d][1,3]oxazine-2,4(1H)-dione (CAS 103979-54-0)
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- 2,2-Diethyl-3-methoxy-4-methylcyclobutan-1-amine (CAS 1427379-65-4)
- Rac1 Inhibitor F56, control peptide (CAS 1315378-77-8)
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