N-(3,4-Dimethoxyphenyl)-4-(thiophen-2-yl)tetrahydro-2H-pyran-4-carboxamide CAS 877651-22-4
| CAS No. | 877651-22-4 |
| Molecular Formula | C18H21NO4S |
| Molecular Weight | 347.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
N-(3,4-Dimethoxyphenyl)-4-(thiophen-2-yl)tetrahydro-2H-pyran-4-carboxamide (CAS 877651-22-4) is a high-purity analytical reference standard with the molecular formula C18H21NO4S and a molecular weight of 347.43 g/mol.
N-(3,4-Dimethoxyphenyl)-4-(thiophen-2-yl)tetrahydro-2H-pyran-4-carboxamide (C18H21NO4S) 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H21NO4S |
| Molecular Weight | 347.43 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.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related N Standards
- 5-(3,4-Dimethoxyphenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazole-1-carbothioamide (CAS 351494-48-9)
- 2-({2-[(3,4-dimethoxyphenyl)amino]-2-oxoethyl}thio)benzoic acid (CAS 440347-44-4)
- 2-(3-(3,4-Dimethoxyphenyl)pyrazolo[1,5-a]pyrimidin-5-yl)phenol (CAS 866144-84-5)
- 3-(3,4-Dimethoxyphenyl)-3-(4-fluorobenzamido)propanoic acid (CAS 332052-74-1)
- (Z)-15-(3,5-Dimethoxyphenyl)pentadec-5-ene (CAS 34809-61-5)
- 3,5-dimethoxyphenyl 2,4,6-trimethoxybenzoate (CAS CATO-C3D-25796)
- Butyl 4-(2,4-dimethoxyphenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 300799-47-7)
- Butyl 4-(2,5-dimethoxyphenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 300690-14-6)
Recommended Standards
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- Methyl N-(4-isopropylphenyl)-N-(phenylsulfonyl)glycinate (CAS 331750-13-1)
- N-(4-Ethoxyphenyl)-5-phenylthieno[2,3-d]pyrimidin-4-amine (CAS 433325-55-4)
- Methyl 5-(aminomethyl)tetrahydrofuran-2-carboxylate hydrochloride (CAS 1304126-25-7)
- N,2-Dimethyl-3-(pyrrolidin-1-yl)propan-1-amine (CAS 938458-84-5)
- 14-Hydroxy-3-methoxy-6-oxo-morphinan 6-Ethylene Ketal (1.0mg/ml in Acetonitrile) (CAS 1612-45-9)
- 2,2,5,5-Tetrakis(hydroxymethyl)cyclopentan-1-one (CAS 3322-70-1)
- (1-Benzyl-3,5-dimethyl-1h-pyrazol-4-yl)methanamine (CAS 956567-89-8)
- Ethyl 5-formyl-2-methylfuran-3-carboxylate (CAS 19615-48-6)
- 4,6-Dimethyl-2-(piperidin-1-yl)nicotinonitrile (CAS 285985-90-2)
- 4-(Tert-butoxycarbonyl)cyclohexane-1-carboxylic acid (CAS 1021273-74-4)
- (3-Methoxyphenyl)(piperidin-4-yl)methanone (CAS 65189-19-7)
- Tetrapeptide-3 (CAS 827306-97-8)
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