6-Methyl-2-(2-(phenylsulfonyl)acetamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide CAS 898405-91-9
| CAS No. | 898405-91-9 |
| Molecular Formula | C18H20N2O4S2 |
| Molecular Weight | 392.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
6-Methyl-2-(2-(phenylsulfonyl)acetamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide (CAS 898405-91-9), molecular formula C18H20N2O4S2 and molecular weight 392.49 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 6-Methyl-2-(2-(phenylsulfonyl)acetamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide (C18H20N2O4S2) 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 392.49 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).
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 | C18H20N2O4S2 |
| Molecular Weight | 392.49 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
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Recommended Standards
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- 478067-79-7 KS-00003DEB [4-(4-chlorobenzoyl)-1-methyltetrahydro-1H-pyrrol-3-yl](4-chlorophenyl)methanone (CAS 478067-79-7)
- N-(Naphthalen-1-yl)-N-phenylmethacrylamide (CAS 141029-31-4)
- 5-(3-(Benzo[d]thiazol-2-yl)phenyl)-1,3,4-oxadiazol-2-amine (CAS 1706454-21-8)
- 2-(Isocyanomethyl)-5-methylfuran (CAS 1031256-45-7)
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