Ethyl 2-(3,4-dimethoxybenzamido)-5-phenylthiophene-3-carboxylate CAS 307536-26-1
| CAS No. | 307536-26-1 |
| Molecular Formula | C22H21NO5S |
| Molecular Weight | 411.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO supplies Ethyl 2-(3,4-dimethoxybenzamido)-5-phenylthiophene-3-carboxylate (CAS 307536-26-1), a certified reference material (molecular formula C22H21NO5S, MW 411.47 g/mol) for analytical method development and quality control.
Structurally, Ethyl 2-(3,4-dimethoxybenzamido)-5-phenylthiophene-3-carboxylate (C22H21NO5S) 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 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 411.47 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).
As a certified reference material (CRM), Ethyl 2-(3,4-dimethoxybenzamido)-5-phenylthiophene-3-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C22H21NO5S |
| Molecular Weight | 411.47 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- Ethyl 2-(3,4-dimethoxybenzamido)-4,5,6,7,8,9-hexahydrocycloocta[b]thiophene-3-carboxylate (CAS 419559-87-8)
- 3-(3,4-Dimethoxybenzamido)-3-(3,4-dimethoxyphenyl)propanoic acid (CAS 332052-73-0)
- 2-(3,5-Dimethoxybenzamido)-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carboxamide (CAS 353468-94-7)
- Methyl 2-(3,4-dimethoxybenzamido)-4-methyl-5-(m-tolylcarbamoyl)thiophene-3-carboxylate (CAS 335410-60-1)
- Ethyl 5-(3,5-dimethoxybenzamido)-3-methylthiophene-2-carboxylate (CAS 380451-37-6)
- 3-(3,4-Dimethoxybenzamido)-3-(4-fluorophenyl)propanoic acid (CAS 332052-63-8)
- Ethyl 2-(2,3-dimethoxybenzamido)thiazole-4-carboxylate (CAS 922807-20-3)
- 4-(3,4-Dimethoxybenzamido)-2-hydroxybenzoic acid (CAS 1030572-38-3)
Recommended Standards
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- 3-(Benzylamino)-4-((4-(4-methoxyphenyl)thiazol-2-yl)amino)-4-oxobutanoic acid (CAS 2096495-93-9)
- N-(2-(5-(2-Fluorophenyl)-1-(methylsulfonyl)-4,5-dihydro-1H-pyrazol-3-yl)phenyl)methanesulfonamide (CAS 923179-78-6)
- N-((5-bromofuran-2-yl)methyl)thietan-3-amine (CAS 1880903-78-5)
- Methyl 2-({4-[(1E)-{[(2,4-dichlorophenyl)methoxy]imino}methyl]-1-methyl-3-(trifluoromethyl)-1H-pyrazol-5-yl}sulfanyl)benzoate (CAS 318238-32-3)
- 4-(5-Hydroxy-3-(trifluoromethyl)-1h-pyrazol-1-yl)benzoic acid (CAS 1005598-79-7)
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