3-(4-Ethoxy-3-methoxyphenyl)-3-(thiophene-2-carboxamido)propanoic acid CAS 436087-15-9
| CAS No. | 436087-15-9 |
| Molecular Formula | C17H19NO5S |
| Molecular Weight | 349.40 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.
3-(4-Ethoxy-3-methoxyphenyl)-3-(thiophene-2-carboxamido)propanoic acid (CAS 436087-15-9), molecular formula C17H19NO5S and molecular weight 349.40 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C17H19NO5S, 3-(4-Ethoxy-3-methoxyphenyl)-3-(thiophene-2-carboxamido)propanoic acid 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 349.40 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).
As a certified reference material (CRM), 3-(4-Ethoxy-3-methoxyphenyl)-3-(thiophene-2-carboxamido)propanoic acid 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 | C17H19NO5S |
| Molecular Weight | 349.40 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.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethoxy Standards
- 5-[(4-Ethoxy-phenyl)-methyl-sulfamoyl]-2-methyl-benzoic acid (CAS 379254-80-5)
- 2-(2-Ethoxy-4-formylphenoxy)-N-(naphthalen-1-yl)acetamide (CAS 486993-05-9)
- (5-Ethoxy-2-phenylbenzofuran-3-yl)(piperidin-1-yl)methanone (CAS 301682-71-3)
- 2-(2-Ethoxy-4-formyl-6-iodophenoxy)acetamide (CAS 444999-98-8)
- 2-Ethoxy-5-[(morpholine-4-carbonyl)-amino]-benzenesulfonyl chloride (CAS 680618-10-4)
- 4-Ethoxy-3-(morpholine-4-carboxamido)benzenesulfonyl chloride (CAS 678186-07-7)
- (2-Ethoxy-4-formyl-6-iodophenoxy)acetic acid (CAS 428482-36-4)
- 3-Ethoxy-5-iodo-4-propoxybenzoic acid (CAS 723245-46-3)
Recommended Standards
- 3-({[2-(diethylamino)-4-oxo-4,5-dihydro-1,3-thiazol-5-yl]acetyl}amino)benzoic acid (CAS 749902-44-1)
- 3-(4-Methoxyphenyl)-3-((4-methylphenyl)sulfonamido)propanoic acid (CAS 295344-96-6)
- 3-((4-Fluorophenyl)thio)-N-(5-(thiophen-2-yl)-1,3,4-oxadiazol-2-yl)propanamide (CAS 896359-07-2)
- 3-(n-Benzyl4-methoxybenzenesulfonamido)propanoic acid (CAS 794584-35-3)
- 5-Methyl-2-(pyrrolidin-1-yl)benzamide (CAS 1306604-34-1)
- 3-(2-Amino-5-fluorophenoxy)propan-1-ol (CAS 1248594-73-1)
- 1-(1-Naphthyl)cyclopentanemethanamine (CAS 59725-72-3)
- 3-Acetoxy-2,2-dimethylpropanoic acid (CAS 2843-16-5)
- 5-(4-(Trifluoromethyl)phenyl)-1-indanone (CAS 863479-29-2)
- 4-(5-Isopropyl-2-methylphenoxy)-2-methylaniline (CAS 946699-54-3)
- (2R,3S,4R,5R)-2,3,4,5-Tetrahydroxy-6-(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexanoic acid (CAS 534-74-7)
- 7,8-Dimethyl-2-pyridin-3-ylquinoline-4-carboxylic acid (CAS 588681-47-4)
- 3-Bromo-N-cyclopropyl-2-methylaniline (CAS 245765-58-6)
- Semaglutide impurity 255 (CAS CATO-C4X-2226255)
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